SIXGUNS

Its 305 with an l98 cam,..other than that pretty stock. Only reason im asking is because i can get it for free.

Jester

Probably. but then Edelbrocks are ***** carbs might work out about equal to a 600 Holley....which would be about perfect

ronterry

It will not hurt, but you'll need to jet it down big time !!!

The biggest differnce between the 600 & 750 besides the larger venturies, is they put in bigger jets at the factory. So you might invest in a Edelbrock rod & jet ket.

Good Luck,

Ron C. Terry

------------------
'82 Trans Am
'81 Camaro Z-28
'94 Vette LT1 Coupe

Disco Man

Jester is right, Edelbrocks are not the best carbs, they have taken the original Qjet design and modernized it. This may sound like a marriage made in Heaven however the way they make their carbs fit too many applications cause them not to function as well as they could. Go with the Holley it will be easier to maintain and tune, it will also provide you with good performance.

------------------
Disco Man

1982-83 Cross-Fire Trans Am Site: http://members.xoom.com/the305cfi/

1979 (L78/W72) 10th Anniversary Trans Am
1982 (LU5) Trans Am

Phil87IROC

iTrader: (1)

Man, this has a Demon 600 cfm carb at $299 written all over it!!

------------------
Phil87IROC
Blue '87 IROC, 383 Crate Motor, KB hyper pistons, AFR 190 heads, TPIS ZZ-9 Cam, Edelbrock RPM intake and Edelbrock 750 cfm Carb, T-5 and 3.42 rear GM gears w/new Auburn posi.
Red '89 IROC L98, 700R4, T-Tops, K&Ns, 160 T-stat, Hyper Chip.

five7kid

iTrader: (14)

Disco Man, I think you're confused. True, Edelbrock makes a Q-jet replacement (see signature), but that isn't what SIXGUNS is talking about.

Other than that, 750 is pretty big for a mild 305. That's more of a high-winding 350 or 400 size carb.

------------------
82 Berlinetta, orig V-6 car. Rescued w/86 LG4/TH700R with all harnesses, sensors, ECM, etc. 3.08 open, cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LB9 w/ZZ3 cam, World 305 heads, exhaust, paint, etc.).
57 Bel Air, my 1st car. Currently 396 .030 over, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.

Jester

All Edelbrocks are basically Q jet ripoffs, not just the Q jet replacment one. All that means is that it's spreadbore and has the hose ports in the right places to it easily where a qjet used to be.

Disco Man

five7kid,
Yes you are correct a 750 cfm is too much for a mild 305 a 600 cfm (no more than 650 cfm) is better suited for duty for this engine. My comment can be summed up to reinforce what Jester said that Edelbrock carbs are junk.

------------------
Disco Man

1982-83 Cross-Fire Trans Am Site: http://members.xoom.com/the305cfi/

1979 (L78/W72) 10th Anniversary Trans Am
1982 (LU5) Trans Am

Disco Man

Jester,
Right-on Edelbrocks are Q-jet rip offs, could not have said it better myself.

------------------
Disco Man

1982-83 Cross-Fire Trans Am Site: http://members.xoom.com/the305cfi/

1979 (L78/W72) 10th Anniversary Trans Am
1982 (LU5) Trans Am

novadude

No, no, no!!! The Square Bore Edelbrocks are AFB ripoffs! COMPLETELY different from Q-jets!!!

AFB, Edelbrock, Holley, Q-jet... they are all good. Ya just gotta go with the one you prefer working with!

S92RS

iTrader: (1)

Novadude is right. Edelbrock "squarebore carbs" like models 1405, 1406 and 1407 are Carter AFB ripoffs. They are identical, just without the Carter label on the front. I have been told by others that the AFB's aren't that great of a performance carb although they are ok for a daily driver carb.

I said screw the Edelbrocks. My Edelbrock 1405 (600 cfm)is coming off today and is getting replaced by a Holley 3310 (750cfm) as soon as I can find a dual fuel line setup for it locally or make one. But the Holley will be on today

------------------
- the 92 RS is gone..
- 1984 Z28 with 89 bumpers and ground effects.
- 355 with ported World S/R Torquer Heads, 214*/224* .471/.496 lift cam, Crane 1.6 Full Roller Rockers, 2500 non-lockup stall converter, Edelbrock Performer carb and intake, Hedman headers with custom 3" Flowmaster exhaust, Lakewood LCAs, Powertrax Locker with 3.23 gears.
- http://s84z28.fbody.com

Disco Man

Jester said spreadbore not squarebore. The Spreadbore are qjet knockoffs made by weber for edelbrock, they have some different components but a lot of stuff is very similar to the original qjets. Check out this link for more info:
http://www.edelbrock.com/automotive/carb_qjet.html


------------------
Disco Man

1982-83 Cross-Fire Trans Am Site: http://members.xoom.com/the305cfi/

1979 (L78/W72) 10th Anniversary Trans Am
1982 (LU5) Trans Am

five7kid

iTrader: (14)

Jester said spreadbore, but SIXGUNS said AFB. Hence, square; therefore, absolutely nothing to do with q-jets.

Novadude summed it up correctly.

By the way, Weber redesigned the q-jet for Edelbrock after Edelbrock bought the rights from Rochester. Edelbrock makes them themselves, not Weber.

Whatever it is, 750 is too big for a 305 (unless it's a q-jet).

Disco Man

Check the Edelbrock web page link that I posted above: "These spread-bore carburetors are manufactured by Weber USA with all new components." So Weber produces the carb for Edelbrock.


I did not see SIXGUNS post. I guess I am going blind.


I agree with you as I said above 750 cfm is too much for a mild 305, a 600 cfm is better suited.

------------------
Disco Man

1982-83 Cross-Fire Trans Am Site: http://members.xoom.com/the305cfi/

1979 (L78/W72) 10th Anniversary Trans Am
1982 (LU5) Trans Am

five7kid

iTrader: (14)

Learn something every day (today it was about Weber making Edelbrock q-jets). Uncle.

[This message has been edited by five7kid (edited September 16, 2000).]

Pablo

iTrader: (1)

FYI Carter=Weber... i believe they are the same company or carter also produced weber carbs at some point, im pretty sure they are interlinked.
At any rate, Carters have been around a LONG time probably longer than Q jets ( i dont know for sure) and they have evolved into good carbs. I would not go with a 750 on a 305. Also, i could be mistaken but all AFB's are mechanical secondaries.. but with an air valve so its like a cross between a mech secondary carb and a vacuum secondary carb

I keep hearing people spout off about how holleys are the best carbs on earth yet i hear no reason why except for 'more tuneable ' when if you understood the basic function of any of these carbs you have nearly infinate adjustment. I think holleys have that rep because they have every kit on earth for them to where a chimp can pick out parts for it where as other carbs you can accomplish the same with some pen drill bits, grinding, and some creativity for free.

ronterry

I'm glad someone spoke up, I was begining to wonder if this was the anti-Carter/Edelbrock board ?

Ron C. Terry




------------------
'82 Trans Am
'81 Camaro Z-28
'94 Vette LT1 Coupe

five7kid

iTrader: (14)

Pablo is correct on all counts. The q-jet debut was 1966. 409's had AFB's (stands for "Aluminum Four-Barrel", by the way) before that.

My Edelbrock 1901 has been a great carb. The only adjustments I made were the idle mixture and idle speed when I put it on the 396 out of the box. It came with DR rods and an O hanger. I have yet to adjust the AV or tune the secondaries. When I finish the mods I have planned, I'll see if there is more in it by doing those things.

I'm with Pablo and ronterry. There are good carbs out there other than Holley's.

------------------
82 Berlinetta, orig V-6 car. Rescued w/86 LG4/TH700R with all harnesses, sensors, ECM, etc. 3.08 open, cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LB9 w/ZZ3 cam, World 305 heads, exhaust, paint, etc.).
57 Bel Air, my 1st car. Currently 396 .030 over, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.

firebird305

I totally agree w/pablo and the rest of the guys. I've had my carter afb for 4 years now,And i've never had a problem with it.

------------------
82 firebird with 305H.O.,Block bored .30 over,Keith black hyperutectic flat top pistons for 10 to 1 compression,Turned crank,Magnafluxed connecting rods,Melling H.V. oil pump,and double roller timeing chain,Ported and shaved heads w/3angle valve job,Z-28springs,Summit push rods and comp cams magnum roller rockers,Ported Edelbrock performer r.p.m.intake,Carter 625 afbcarb,Accell spark plugs,wires,and H.E.I.super coil,Heavy duty cap and rotor,Clevite performance cam with 450-460 inches of lift,Comp cams lifters,700r-4 tranny rebuilt with trans-go rebuild kit,corvette servo,New torQue converter,Flowtech headers,Flowmaster muffler,3.73limited slip rear end,Energy suspension bushings from front to rear,Energy suspension tranny mount,New center link,ball joints,trans-am steering box,Hopeing to run good times when i FINEALLY do get to the track!!

Zepher

iTrader: (1)

Right out of the box, my Edelbrock 1406 ran perfect. I had my Q-jet rebuilt in February and it ran ok. The I decided to swap carbs. The Q-Jet was never as strong as the Edelbrock. I was so amazed after I got the 1406 on the car and took it down the road, chirping in 1st, 2nd, and 3rd.

------------------
Zepher
'86 Pontiac Trans Am WS6, 5 Speed:
Edelbrock 1406 Carb, Edelbrock Performer RPM 7101 Intake Manifold.
Edelbrock Open Element Air Cleaner: Flowmaster Exhaust, 160* Thermostat,
Grant GT Steering Wheel, MSD HEI Coil, Taylor 8mm Wires, Recaro Seats,
Alpine CD+Changer,Rockford & Soundstream Amps, Premier TS-1040C Subs, Polk Audio highs/mids.

WS6 Trans Am

Polecat

I had the 1407 Edelbrock 750cfm, it ran ok, but just ok.I decided to get the Demon 750cfm with mechanical secondaries and what a difference! The Demon has way better acceleration,WOT pull, and tuneablility....plus, it looks better. I think Edelbrocks are great for a mild daily driver,for streetable manners, but performance, I won't go back to them.

------------------
350 4 bolt main, Speed-O-Motive 383 stroker kit, re-sized rods ground for clearance,Hypereutectic pistons,9.8:1 compression,HPC Coated RPM intake, Speed Demon 750 cfm carb,World Products Sportsman II heads,2.02/1.60 valves, K-Motion springs, Comp Cam 1.6 roller rockers, Lunati adv.292/230@.050 with .512 lift,Crane pushrods,Proform HEI and MSD6A box,HPC coated 1 5/8 headers, 2.5" exhaust with 40 series mufflers,TH350 with B&M 3000 stall, Powertrax NoSlip Locker, 4.11 gears.

Damon

............um,................s'cuse me,.................


Didn't the original post say that he could get the carb for FREE?!?!?!

ALWAYS ALWAYS ALWAYS TAKE FREE PARTS!!!! NEVER NEVER NEVER TURN THEM DOWN JUST BECAUSE YOU DON'T NEED THEM TODAY!!!!

Is a 750 too big for a 305? Yeah, maybe a little. But it's a vacuum secondary carb which instantly means it's going to compensate 90% for any over-carbing problem (just like a QJet). Long story short, it'll work just fine. I can't tell you the number of times I have put on parts that are supposedly "too big" and STILL gotten good results. Is it "optimum"? No, but the price is right and that's close enough for government work! I GUARANTEE you will not make a dog out of the motor by using this size carb.


------------------
94 Firebird Formula M6- No options but Z rated tires. No mods over $10. 13.5@105.
79 Malibu "beater" w/junkyard 400 SBC, tweaked QJet 4bbl, finally a decent set of heads, a few other tricks. A maddening 13.000001 @ 108 on the motor with little traction. No nitrous runs with the new heads yet.
Grandma's old 78 Malibu (33K miles!) soon to have the powertrain from the 79 put in it.

"One of the last remaining QJet tuners on Planet Earth!"