Hey guys I finally decided to spend the money and get the Edelbrock off my car. I called summit and got a 750 Holley double pumper, the tuneing kit with different power valve, 4 of each jet from 70-85, different squirters, and some gaskets etc.. Also I got some clear sight plugs and the Accelerator pump cam assortment so I think I have everything I need to get this thing pretty dialed in right?? did I miss anything?? Also I am going to put it on a 1-inch spacer to clear my fitting for the brake booster, thats not really gonna effect anything right?? Also woudl the 50cc pump shot kit be worth the money or is it one of them buy it if u need it things?? thanks guys and any little tuning tips would be great... Thanks oh yea, do you think I can expect to have a seat of the pants difference??

 

Sounds like you got a pretty good base of parts there.You should have bought the Holley jet kit instead of the individuals..usually runs around $40 for all of the jets ranging from 64-99 IIRC.The 50cc pump I would hold off on and see if it is needed first like you said..you shouldn't need it with your combo.First tuning tip I would give you is get the carb on the car and running and see where it is at in stock form..it may only need very minor tweeks to run great on your car.

 

You won't need the 50cc pump kit.
You don't need 4 of each jet in that range.

2 70's 2 74's 2 76's 2 78's 2 82's and 2 84's would cover it for ya. the 750DP comes with 72's and 80's i believe.

Don't use a carb spacer. The vacuum fitting on the rear manifold runner is not for the brakes.
use a Vacuum "T" and connect the power brakes and PCV to the 3/8" vacuum fitting on the base of the carb
at the rear.

Having had both I think you're going to find out just how good your Edelbrock is. I wouldn;t toss it out yet. They are both good carbs.

Get a heat shield.

 

100% in agreement

 

Why do you guys say that?? I spent a bit of money here cause everyone on here has done nothing but tell me how great holleys are and how the Edelbrock is holding me back so much. Lets hear why before I put it on, cause i will send it back

 

I cant stand holleys. Nothing but problems. There is the big misconception that edelbrocks dont need tuned, and they are out of the box carbs. That is true, they will work better out of the box than a holley, but they will still need to be tuned properly. The edelbrock is just a better all around street carb, and will last longer than a holley. At least for me they do

 

We all have our preferences.

Personally, I'll take a Holley over a Carter any day. That Carter you have is a relic from the Stone Age. Even Rochester did away with a weight-controlled air valve in the 50s. While you can get a Carter to run good, and they are in fact a reasonably reliable piece, they are far from the best thing out there with the most learning applied to them.

For that matter, Chrysler quit using that ancient Carter design in the mid 60s; and went to ...... you guessed it ..... Holley, for their 4-barrel carbs. All of the classic 60s muscle cars, with very very few exceptions (one of the most interesting being the 429 SCJ motors in Torinos and Mustangs in about 70, for which F*rd bought QuadraJets from GM), came with Holley carbs.

You'll like it.

You probably should start out without the spacer. If you look in the rear of the throttle body, you may find a hole or a tube of cast material, which you can either remove a plug from, or drill and tap, for 1/8" pipe. Or, you can just install such a hole. That will give you a nice sanitary place to hook your booster. Then just plug off the hole in the intake with an allen-head (flush) plug.

When you get it on your motor and get everything all hooked up right and all, come back here for help on tuning it. I can guarantee that it will not be optimum out of the box. It will probably run, and mabe even run better than the Carter you have now; but there's lots of room for improvement. Not because it's built wrong, as because there's lots of opportunities to make it match exactly what your car wants. Your car, notjust your motor; gears, converter, and weight all affect that, and Holley has no way of setting their carbs up perfectly for those variations.

Exactly what carb did you get?

 

well if you decide to sell that edelbrock can i have first dibs on it ? if so my email is lnowell@madisontelco.com send me an email when you want to get rid of it ill take it if the price is good can not have too many good carbs laying around to use

 

1. yes we do

2. neither is a edlebrock/carter

3. not necesarily run better and there are lots of room for improvement on a carter/ edlebrock also you can tune it to match your engine ,gears, converter, and weight also just with some metering rods springs and jet changes and the best part about your edlebrock is you dont have to buy gaskets every time you go to change anything becasue its done by removing the top of the carb where there is no gasoline sitting and by doing this they have done away with having leaks after you change jets or anything in the carb so your not leaking all over your intake and you also dont have to worry about backfireing and loosing the dreaded powervalve ...........but if its what you like its what you like .....


if it were me id look at it like this are you running this car at the track all the time ? and not driving it on the street ?
if so then get the holley if your doing mostly street driving then keep the edlebrock and enjoy it ...buy a metering rod kit ....it comes with the springs rods and jets to go up or down like 5 or 6 sizes and make it match your car and enjoy it

 

You don't have to replace the gaskets every time you work on a Holley either. What a crock.

There's no point in attacking Holleys, or the guy about buying a Holley. He's got it, he wants to make it work, so help him out. If you can't help, or don't want to, then at least don't attack him. Buy his Carter if you want it even, but don't attack him. That's of no value to anyone.

It always amuses me to see people talk about how Holleys aren't any good for the street. If they would make an effort to understand them instead of either repeating the local Friday night McDonalds parking lot monkey-spank they hear from others who don't understand them, or basing their entire opinion off of one bad experience that derived from not understanding them, they might find that they're a superior design to the old weight-controlled Carter that changes its secondary calibration every time it goes over a bump, and dies or floods in a hard corner.

Personally I've been running both Holleys and Carters on cars since before most of the people on this board were a gleam in their daddy's eye yet, and probably even before some of them's daddy was a gleam in his daddy's eye. I've gotten pretty used to both of them. After learning how a Holley works, and how to make them be the best they can be, my opinion (FWIW) is that it's a better designed carb than the Carter, and will produce better results every time, subject to the usual common sense rules of selecting the right one for the application (no different from the Carter in that respect). So I'm going to help the guy make the best of his better carb, rather than bashing him or it because I don't understand it.

 

i never attacted a person about holleys he asked if you read up a couple posts to describe to him why he should keep the edlebrock and i did just that .
i have also owned many a holley and also worked on them day and night had some of them work out and some of them that werent worth more than a paper wieght ...lol.....if the carter /edelbrock design is so bad then why do they sell them by the thousands all the time ...im not trying to attack you but i to was also trying to help the guy here not bashing him because i dont understand it ...lol ....it just cracks me up to hear people tell me that im not a carb expert by no means but im also not a kid that knows nothing about cars in my last 15 years of experience with cars i have owned many holleys and carters and i must say the holley isnt a horrible carb it just not what i would tell people to run on thier car if they are going to be driving it on the street day in day out , you say the holley is better i say the edlebrock / carter is thats our opinoins lets leave it at that ......and i take offense to someone comming up and saying im bashing someone when i did nothing of the sorts i was just replying to a question that was directed at the edlebrock carb asked by the original poster ...

 

The only attacking I see is here:


Its not McDonalds parking lot monkey spank either, it is personal opinion based on experience. Much like yours. Of course not all of us are as rude as you, we dont refer to other peoples experience as "Mcdonalds Parking lot monkey spank."

 

ok guys this is getting a little brutal, I really love the help I get here but theres no reason to start a fight, I have the edelbrockl on now and yes it runs great and I have changed all the jets and messed with this thing to no end and my car does run better then all my buddies with holleys. But when I see there cars and help them out I see just how you can taylor a holley to your application, theres don;t run so good cause they don;t want to learn. But I love messing with things, And this car pretty much sits in the garage and comes out on the weekend or a nigce nigth and when i go to the track. so i am looking for nothing but performance but i still need the choke. I ordered, and 750 holley double pumper, the calibration kit that has some jets, gaskets, power valves, squirters, i also got the pump cam assortment and some clear sight plugs for the bowls so i can get the floats just right.

 

Go for it. I know they can perform very well, i just dont care for them

 

My observations here:

https://www.thirdgen.org/techbb2/sho...hreadid=251238

As stated there, I've never had an AFB/Performer, but I'll add that I know quite a few who have/had them. Since the air flap principle is the same as the q-jet AV, and same effect as VS, I'll assume similar results - similar peak HP from all, better area-under-the-curve w/DP; therefore, I'll vote for the DP.

 

Similar, but the secondary air valve on an AFB isn't easily adjusted as it is on a Q-jet or a VS, so it's probably not quite as good as either of those.

 

not to hijack the thread here but how many people on here have actually owned an edlebrock carb ?

 

I've had a few, there's one on my car now.

 

I see the originator has a T5.

Unless you are keeping it floored during shifts, air flap/demand-based secondaries aren't the best way to go.

Keeping it floored during shifts isn't a very friendly thing to do to T5's.

You don't have to have an Edelbrock or T5 to know that.

 

I just noticed that, and you are right five7. With the manual he probably would be better off with the DP. I still like my edelbrock though

 

no doubt...LOL

 

I've had a few Carter AFBs, including the chrome-plated ones with red stickers. Last one of those that I put on was in a 74 Dodge truck.

The one that I really found the most interesting though, was in a boat. It was a early 70s Century inboard, about a 17 footer; had a Chrysler 360. You'd think the boat ought to scoot. But instead it was a pig. So we tuned it up, which didn't really help much; and then I rebuilt the carb. After that, it picked up about 600 RPM up top (like from 3800 to 4300) which as anyone that has a boat knows, is HUGE. Like a 40% HP increase. The carb must have been seriously sick. Afterwards we finished calibrating it while running up the channel in rough water as it happened, and we noticed that it seemed like whenever the boat hit a bump in the water, the motor would slow down. The sound of it would even change. So we popped the flame arrestor off, just watching it to make sure it was OK; and we noticed that every time the boat hit a wave, we could see the AV close.... remember, it's weight-controlled. I guess the weight got "heavier" at those moments, and opposed the sec air flow more. We stuck a screwdriver down in it, and picked up another 200-250 RPM; but of course you can't leave one of those carbs like that, it's like adjusting a Q-Jet to zero tension, it'll bog like hell when you gag it. We all got a good laugh out of the total Stone Age-ness of it.

Anyway, I don't really like those carbs. OK old-lady carbs in 4500 lb land barges; not for hot rods though. Just preference.

And if I come across any of them that I just can't avoid, I'll gladly consider trading them for Holleys that you other guys don't like; and then I'll make those go faster than your Carters.

 

i get a kick out of people saying the carter / edlebrock is stoneaged...lol...how long has the holley been around and they finally got around to eliminating the powervalve one them ....talk about old school thinking...lol....but yeah ill take any carters or edlebrocks you dont want man send me a pm when you get one ill be happy to pay for shipping too ......
but i dont quite understand your terminology of the last post ? you are comparing a carb being on a engine in a boat to a carb being on an engine in a car ?? i dont know of many cars that bounce as much as a boat does unless you have hydrolics on it ...lol......
i have never had a problem with launching with one either as hesitation goes maybe im the only lucky one out there with these carbs ....loll

 

We must drive on different roads!!

 

i guess ....lol....i dont think i have ever hit a 3 foot wake in my car before ....LMAO

 

true, but if i even hit a manhole cover with my edelbrock under WOT, the motor surged. I'm much happier with my holley type carb then i was with the carter type.

 

silly question what were you doing at wot where there are manhole covers ??? anyway what did you do with your edlebrock?

 

i don't know how awsome the roads are where you live, but there are plenty of handholes, and manhole covers in the roads in phoenix.

and my old edelbrock is in my friends truck.

 

the roads are far from awsome im just saying why are you wot in town in the first place ...lol....we ha\/e potholes and manholes here also but we dont need to run wot to go thru town ...out on the highway its a smooth run and no problems at all

i\/e also ne\/er ran into the whole manhole made my car surge problem unless you hit it hard enough to slow the car down somehow and then thats the least of your problems

 

Because once my foot gets tired and falls to the floor

Because i don't have a fast car to drive it around like grandma in her caddy.

you can't say you haven't done any freeway on-ramp speed testing.

 

The Holley at least has evolved somewhat over the years, while the AFB has existed pretty much unchanged since 1957. I'll never know why they continued making the AFB for aftermarket use after it was replaced in 1966 by the AVS in OEM applications. Edelbrock is at least now making an AVS clone, which may be comperable to a Holley VS in performance, although it would still suffer from the same problems as the other demand-based secondary designs.

 

i used to dri\/e fast cars around town like that untill i grew up and realized how dangerous it is .......and no i dont do freeway on-ramp speed testing ..lol...i dont like paying speeding tickets when you can go to the track or out in the country where there are no other cars around and dri\/e like an idiot all i want without hurting anyone else but myself ...

 

You do realize i can drive my car at WOT though first and possibly second gear, and never take my car more than 5 miles an hour over the speed limit.

in fact, i don't think i've ever driven faster than 15mph over the speed limit on the street in my life.

just because i was at WOT doesn't mean i was being dangerous or racing.

don't judge people before you know what your talking about.

 

when a cop rides by what do you do ? do you keep it at wot while he is in passing?
doubtfull mainly because of exhaust noise but he will be happy to write you a ticket for excessi\/e show of power ...and yes it is a ticket that can be written....lol...didnt you write this "you can't say you haven't done any freeway on-ramp speed testing."
and im not to fast to judge anyone ..im only judging by what YOU posted thats all not making anything up .. but seriously this is getting to be a silly arguement about something that is way off topic and if you are running your car at wot thru 1 and 2nd gears then you wont be for long because it wont last doing that to it guaranteed .....

 

drive slow, i.e. not at WOT

getting on it once every 2 or 3 days isn't hurting much, in fact for the past year, my 4 spd saginaw has been hold up just fine, and it probably as weak as a non-wc t5.

why own a fast car if you are going to drive it slow 99% of the time.

if i wanted to do that, i would have a hydundai that gets 45mpg for a daily driver, and trailer my car to the track.

 

are you done yet man ...this has strayed way past the question of this thread ....but i still say that you dri\/e too fast on the street if thats how you dri\/e but thats an opinion so dont take it so hard e\/eryone has them ...lol.....since i ha\/e grown up and got married and ha\/e 2 kids now it pisses me off when these kids run down the street at wot while my kids are playing in the yard ....lets say my kid doesnt see you and you run past with your foot on the floor and he goes in the road to retrie\/e his ball and you cant get your foot off the gas fast enough to hit the brakes ...guess what ...you just screwed up badly ...now does it make sense to you why you shouldnt dri\/e at wot thru 1 and or 2nd gears in town i hope it does if not you sir ha\/e alot of growing up to do .....so think about that the next time you are dri\/ing down the road saying you dont want to dri\/e like a grandma ..im sure there are plenty of places you can take your car to play besides in town ....

 

a couple things i should clear up,

A. i don't floor it throgh 1st and 2nd all the time, as i said maybe once or twice a week. gas is waaaayy to pricey to do that. I have a vacuum gauge in my car, and 95% of the time, i drive my car to attain the most vacuum, it saves me trips at the gas station.

B. hypotheticly, If your kid is running out to get his ball in a six(seven including the turn lane)lane road or a freeway on-ramp, he has more problems that me driving 55 in 50. whether i had floored it to get to 55 or not. I don't drive like a jackass in my neighborhood, or around schools, or in parking lots. I can't even tell you the last time i've even squeeled my tires.

and btw, no offense, but the typing \/ for a v is very hard to read.

iT iS kInD oF lIkE tHiS.

 

i know it is but the keyboard just screwed up tonight and i ha\/e no choice....lol...getting a new one tomorow kids spilled water on this one today sucks .......but the way you made it sound in an earlier post you werent on a freeway other wise you would ha\/e cleared that up long ago .....anyway .......im making a point that if your intown like i said in an earlier post there is no reason to dri\/e at wot ......i can understand if your getting up to speed on a freeway or an on ramp but thats not how it was worded on here you asked once if i e\/er did any speed testing on a on-ramp that was it the rest wasnt directed that way