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Old 04-19-2008, 12:08 PM   #1
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What carb is best for a 350?

my chev 350 it has a cam heads intake and headers, what carb is best edelbrock? Demon? Holley? any others within a reasonable price?
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Old 04-19-2008, 11:55 PM   #2
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What heads?

What cam?

What headers?

What use?

Edelbrocks are good for people who want something cheap and don't care how it runs. "Reasonable price" is inadequate - "Reasonable price for the performance" is a better criterion.
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Old 04-20-2008, 02:40 AM   #3
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Re: What carb is best for a 350?

i dont have exact specs right now but in general they are oversized heads, with a crane cam, and flowtech headers, edelbrock intake, i want a good reliable carb for daily driving/street racing and also be able to perform on the strip if need be
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Old 04-20-2008, 03:41 AM   #4
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Re: What carb is best for a 350?

So you've got mystery heads that are "oversized", a random cam that could be anything, crappy headers, a random intake that could be stock replacement or a single plane drag racing intake, and you want the car to be streetable AND a strip queen.

Yeah... you can make a practical car go fast, but it costs money and generally requires very, very careful choices to make the combination work.

If you're going to daily drive it, that needs to be priority number 1. Forget street racing and the quarter mile, they dont matter unless you can actually drive it.
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Old 04-20-2008, 04:15 AM   #5
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Re: What carb is best for a 350?

what im basically saying is its a basic 350 with few parts what carb is better demon holley or brock?
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Old 04-20-2008, 06:54 AM   #6
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Re: What carb is best for a 350?

What Im basically saying is what is best is completely subjective since you nor us know anything about what your motor is other than the displacement.

Just pick one, your guess is as good as ours.

However, if it's a manual be sure to get mechanical secondaries, but it's probably an auto, so it doesnt matter as much.

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Old 04-20-2008, 01:04 PM   #7
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What you haven't said is what you have now.

Most likely the best carb for you is a stock q-jet.
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Old 04-20-2008, 04:26 PM   #8
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Re: What carb is best for a 350?

It is a manual 5spd, okay so answer this which is better edelbrock or demon?
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Old 04-20-2008, 04:59 PM   #9
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Re: What carb is best for a 350?

The carb depends on what your running. differnt carbs have different preformance value. Stick with a Q-jet untill you know what your doing, they are cheap and cover a wide range of CFM / fuel capacity as they were installed on many different car models for over 50 years.
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Old 04-20-2008, 08:34 PM   #10
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Re: What carb is best for a 350?

I already have like 4 Q-jets and am getting sick of fixing the choke, i want an all around good carb i can bolt on my 350's and 305's ill buy something more serious once i gather my bigger blocks together, but just need a good carb for small block chevy about 650 cfm, id go buy an edelbrock like everybody else, but i kinda want something different without sacrificing performance id get out of an edelbrock carb. Id pay a lil more for one that performed better than brock.
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Old 04-20-2008, 08:45 PM   #11
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Re: What carb is best for a 350?

ok, no one is helping you because your not helping us help you....no one just wants to tell you a generic carb cause we dont want to look like idiots for telling you something you dont need. here is some advice go to holley.com they have a helpful application to help u pick out your carb, its in the upper right hand corner...the best thing to know is send your ego out of the room, answer the questions honestly and it will help you pick out a carb that will work good for your app...dont over carb your motor, and dont get a carb you can "grow into"....off of what lil info u have said i would tell you to go with 570cfm holley street avenger or maybe 670 but unless you are gonna run wide open alot that 570 would probably be best....
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Old 04-20-2008, 08:50 PM   #12
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Re: What carb is best for a 350?

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It is a manual 5spd, okay so answer this which is better edelbrock or demon?
o and this is so debateable but IMHO....Edelbrock are good for a daily driver mild v8, will give decent performance, decent milage, and ease of tuning....(have one on my beater parts truck) demons are really nice carbs and if you know carbs u can do wonders with them, but they are high priced and once again IMHO worth it...but i dont thinkn your application calls for one...then there is the tried and true holley, i like 4150 series ones so much aftermarket for them, really good for performance and ok for the street, needs more tuning then a brok, but i have found the streetavenger series to be really good.....
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Old 04-20-2008, 09:40 PM   #13
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Re: What carb is best for a 350?

It's a manual, he's going to need mechanical secondaries.
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Old 04-20-2008, 10:17 PM   #14
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Re: What carb is best for a 350?

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It's a manual, he's going to need mechanical secondaries.
manual doesnt automaticly mean mechanical secondaries, still depends on the weight and useage... with the weight of his vehicle, and his gearing he doesnt meet the general criteria for a mechanical secondary carb, most cars dont, will it hurt if he has one? not really maybe a mpg or two....will it help...probably not.....i still say get the street avenger...once again standard doesnt eqaul mechanical secondaries.....dont be a sheep, bah....

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Old 04-20-2008, 11:26 PM   #15
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Street Avenger (or any vacuum secondary carb) is one of the worst choices for a manual transmission car, especially if driven aggressively and doubly so for a T5. You'd be better off with a q-jet or Performer.

The only way to mess up with a mechanical secondary carb is to get one that's bigger than you need. A 600-650 CFM Holley double pumper will be fine on a mild 350.

Been hearing too many reports of quality issues with Demon carbs lately to recommend one of them.
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Old 04-21-2008, 04:01 AM   #16
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Re: What carb is best for a 350?

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manual doesnt automaticly mean mechanical secondaries, still depends on the weight and useage... with the weight of his vehicle, and his gearing he doesnt meet the general criteria for a mechanical secondary carb, most cars dont, will it hurt if he has one? not really maybe a mpg or two....will it help...probably not.....i still say get the street avenger...once again standard doesnt eqaul mechanical secondaries.....dont be a sheep, bah....
Every time he shifts, those secondaries are going to close, and he's going to have to wait until the motors loaded back up again for them to open back up. I'm sure he could get away with vacuum secondaries, but I dont see the point in dealing with them for a manual application.
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Old 04-21-2008, 12:28 PM   #17
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Worse yet, at every shift, the vacuum secondaries will delay closing - you'll be "speed shifting" even if you aren't trying to. Death to a T5.

At least with a q-jet or Performer, the secondaries will close when you let off the throttle, even though there will be a slight delay opening when you hit it again.
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Old 04-21-2008, 07:25 PM   #18
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Re: What carb is best for a 350?

well boys i think i got my answer thanks alot, ill probly just go with edelbrock, good thing you guys brought up the mechanical secondaries. that was the best tip of all.
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now i have a problem about hood clearance, personally i havent seen a better hood for the 83 trans am than the ram air one it comes stock with, the dual ram air aftermarket hood looks nice but i dont like the way it looks on the car or from the drivers seat, i like seeing the honey comb cowl from the drivers seat.Everything would clear fine if i dont add the spacing plate for the edelbrock carb but if i do i would have to get rid of my air cleaner with the ram air induction. I am thinking of gettiing my ram air, air filter case chromed what do you guys think of that it will be around 80$

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Old 04-21-2008, 08:06 PM   #19
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Re: What carb is best for a 350?

edelbrock doesn't have mechanical secondaries....a holley 4150 carb does.
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Old 04-21-2008, 08:09 PM   #20
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Re: What carb is best for a 350?

crap holley was my last choice does demon have mechanical seconds?
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Old 04-21-2008, 08:12 PM   #21
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Re: What carb is best for a 350?

i didnt really feal like reading all this mess, all i can say is dont go with edelbrock, i would go with a small holley like less than 750, with mechanical secondaries cause of the 5 speed, and you'll be alright i was running a 650 on my truck everyday to school and it had plenty of power for me.
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Old 04-21-2008, 08:15 PM   #22
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Re: What carb is best for a 350?

demon = holley.....go do some research. buy a 650cfm double pumper holley 4150 carb and call it a day. if you need electric choke instead of manual they sell a kit to convert it.
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Old 04-21-2008, 08:17 PM   #23
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Re: What carb is best for a 350?

Isn't Barry Grant, Demon ? or am i confused?
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the only thing i have against holley is you can find factory holley carbs and throttle bodies, on stock minivans and k-cars.

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Old 04-21-2008, 08:25 PM   #24
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Re: What carb is best for a 350?

demon is a knock off of holley more or less.....not that they arnt as good or better in some instances,,, holley has been around for over 100 years, they win more races then all other carbs combined, and every nascar team uses them, so my question is why would they be ur third choice...o yeah and parts are very plentiful and the carb is easy to rebuild and tune if u have half a brain....
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Old 04-21-2008, 08:29 PM   #25
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Re: What carb is best for a 350?

your reply raises a good point im thinking demon may be the way to go for me, I like the holley design, I want something different, now im also thinking demon may be an improved holley version, and if they are the same might as well have the demon name. Everyone will guess there is a 350 but will they get the carb right lol? I hate having a motor everyone knows is in there, in retro spect i shouldave jus rebuilt the 400ci I had and used it.
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Old 04-21-2008, 09:14 PM   #26
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Re: What carb is best for a 350?

Get a holley 4150, or street HP mech secondaries with a cfm range of 600-700 maybe 750 if you plan on getting alot of power out of your 350 down the road and don't plan on buying another $500 carb. You will be burning ALOT more gas if you get a double pumper though but its your best bet for performance. If you want to sacrifice performance for mileage get an edelbrock performer 600-650 they are good for street driving, Dont get a q-jet unless you know them really good. Demons are holleys they just have a "cooler" name and a nicer shape, and they are alot more expensive, plus whos going to see your carb under your air cleaner??
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Old 04-21-2008, 09:23 PM   #27
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Re: What carb is best for a 350?

while it is true that a standard can get away with a bigger carb dont go bigger then a 700....dont buy a 750 to grow into...if down the road u need a bigger carb then sell yours and buy a bigger one...to big of a carb is one of the most commone performance mistakes....with engines the one of the worst things u can do is get something that is too big for your application that you have now, because you will need it later....i.e. carb, cam, intake, heads.....everything in moderation......
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Old 04-21-2008, 09:46 PM   #28
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Re: What carb is best for a 350?

ill be buying a 650 ill need one for small block chevs ill buy a good one for my big block
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Old 04-21-2008, 09:51 PM   #29
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Re: What carb is best for a 350?

Ive got a 750 on my 305 until i get my 350 and it runs pretty good besides some low rpm power loss, everyone told me that my car would barely run and would not be driveable but its fine, if i used a smaller jet size it would almost be perfect and the performance over the q-jet was amazing.
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Old 04-21-2008, 09:59 PM   #30
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Re: What carb is best for a 350?

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Ive got a 750 on my 305 until i get my 350 and it runs pretty good besides some low rpm power loss, everyone told me that my car would barely run and would not be driveable but its fine, if i used a smaller jet size it would almost be perfect and the performance over the q-jet was amazing.
yeah it can be done jet it down it will work just like u said with some low rpm loss....i just wouldnt recomend it on a daily driver unless u had to, its just always best to get what you actually need ya know....
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Old 04-21-2008, 10:39 PM   #31
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Enough of the "Demon = Holley" stuff. Not true. Yes, Demon carbs are made by Barry Grant, and yes, they are based on the Holley basic design, but the aren't the "same thing".

Yes, BG makes mechanical secondary carbs. They call them "double squirters" because "double pumper" is a Holley trademark. As I already said, be cautious if you're considering one, because there have been a lot of reports lately about quality control problems with BG carbs, especially the street-type carbs.

If you want a choke (good idea for a street car), you don't want a Holley HP. If you would consider living with the hassles of no choke (and no, you can't "tune" the carb so it will be okay without a choke when it's cold), then it would be a good choice.

Your basic Holley 4776 would be one to consider. Also consider adding an electric choke conversion. Will it be more expensive than an Edelbrock Performer? Yes. Ever heard, "You get what you pay for"? Put another way, you don't get more by paying less.
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Old 04-22-2008, 09:17 PM   #32
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Re: What carb is best for a 350?

yeah ill go with electric choke for sure, its april here and it just snowed like crazy and laid down some freezing rain, and come to think of it i was watching a show where barry grant had to come to tune the carb and even he had to mess around with it to get it running, maybe ill just go holley i already cheaped out and bought the flowtech headers.
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Old 04-22-2008, 09:56 PM   #33
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Re: What carb is best for a 350?

A Holley 4776 or 4777 (600cfm or 650cfm double pumpers) would be the best choice if you have the 5-spd. Get the electric choke conversion for it and you'll be pretty happy with it I'd bet

I have the 4779 (750 double pumper) on my 350, which is quite a bit hotter than yours and probably doesn't fit anyones definition of "mild" and it works wonderfully! The 600 or 650 would work just as well on yours.
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Old 04-22-2008, 11:31 PM   #34
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Re: What carb is best for a 350?

Where are you located? I can't beleive this weather its basically been blizzarding for the last 4 days and we have about 2 feet of snow in some areas. My Doors are completley frozen shut and the drifts around my car are like 3 ft high. Last thursday/friday it was in the +20's!! and felt like summer!
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Old 04-23-2008, 10:13 AM   #35
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Re: What carb is best for a 350?

im in saskatoon its not bad here jus a lil bit of snow left, now where do you think i could find a 650 holley dp with mechanical secondaries and electric choke the cheapest?
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Old 04-23-2008, 12:15 PM   #36
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Re: What carb is best for a 350?

http://store.summitracing.com/egnsea...+115&y=11&x=21 bout the best youll do on a new one, and ull have to buy an electric choke conversion kit, or just leave it as a manual choke.....no mechanical secondary ones come with an electric choke
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Old 04-23-2008, 12:49 PM   #37
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Re: What carb is best for a 350?

I got my DP for $420 at my local performance shop, I just got the dichromate one becuase I dont see the point in buying a chrome carb when you will never see it plus it saved me like $100 dollars. Get the manual choke (it's actually pretty nice to have) then later on you can get the conversion Also if you go to a local shop that specialises in holleys they always have used rebuilt ones for really cheap.
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Old 04-23-2008, 01:30 PM   #38
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I paid $100 for a decent used eBay 750 DP, $50 for electric choke kit, $30 for rebuild kit, $18 for a TV corrector bracket. Already had the carb dip-type cleaner.
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Old 04-23-2008, 04:00 PM   #39
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Re: What carb is best for a 350?

I was just told about predator carbs what do you guys think of those?
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Old 04-23-2008, 04:28 PM   #40
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Not for the street.
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Old 04-23-2008, 06:24 PM   #41
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Re: What carb is best for a 350?

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im in saskatoon its not bad here jus a lil bit of snow left, now where do you think i could find a 650 holley dp with mechanical secondaries and electric choke the cheapest?

Saskatoon eh? Shoot me a PM when you see this....
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Old 06-26-2008, 01:38 AM   #42
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Re: What carb is best for a 350?

Maybe a little late to answer this post now, but I just bought a (Holley based) Quick Fuel Technology 650 cfm carb from carshop.inc for 493 USD.

It is a double pumper with electric chocke and annular boosters.

Maybe not much more $$ than buying a Holley and a chocke rebuild kit?
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Old 08-05-2008, 03:16 PM   #43
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Re: What carb is best for a 350?

I broke down and bought the holley 650cfm Street HP dp mech secondaries no choke 500$
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Old 09-26-2008, 09:32 PM   #44
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Re: What carb is best for a 350?

so how do u like it
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Old 09-27-2008, 01:02 PM   #45
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Re: What carb is best for a 350?

It was the answer for sure. it performs like a champ in every gear, when you go to switch gears there is no more pause. it made a tremendous difference in throttle response. Not to mention it looks good sitting on the motor. i can light em up like crazy just rolling down the street at the speed limit,then hammer down the throttle and you can go into an instant fishy, peel out and then launch again in 3rd or fourth Now i think i may get a whole msd setup just to burn the fuel. I cant wait until spring. I want heads too but not sure if the T5 can handle it.

Last edited by DirtyCanadian; 09-27-2008 at 10:56 PM. Reason: Bypassing Board filter
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Old 09-27-2008, 01:40 PM   #46
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Re: What carb is best for a 350?

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Originally Posted by DirtyCanadian View Post
It was the answer for sure. it performs like a champ in every gear, when you go to switch gears there is no more pause. it made a tremendous difference in throttle response. Not to mention it looks good sitting on the motor. i can light em up like crazy just rolling down the street at the speed limit,then hammer down the throttle and you can go into an instant fishy, peeling out and giver sh#t. Now i think i may get a whole msd setup just to burn the fuel. I cant wait until spring. I want heads too but not sure if the T5 can handle it.
I take it the car isn't a dd? I'd get tired of sitting there feathering the gas waiting for it to warm up on a colder day.. Electric choke was the best money I've ever spent.
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Old 09-27-2008, 01:45 PM   #47
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Re: What carb is best for a 350?

i am in canada right now and it is pretty cold right now, all i do is pump the gas twice which i probably dont need to do but it is routine. Then the car fires up, i usually pump it again it smoothes out and runs good. But yeah this car isnt my dd i use my truck mostly. its not a winter car you would kill yourself for sure. its about time to store it.
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Old 11-21-2008, 08:14 PM   #48
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Re: What carb is best for a 350?

Update on that holley of mine it is minus-20 to minus -27 celsius right now with the wind chill right now, and I have it parked outside for now. And everytime Igoto start it, it starts strong and runs really good you dont need to feather the gas just pump it a few times.
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