What Carb should I use?

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Apr 16, 2003 | 10:14 AM

conway62

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From: Pinellas Park FL

What Carb should I use?

I currently have a LS6 454 / 425 HP in my 71. It has a rebuilt Carter AFB on it. It dumps a lot of gas at Idol and I feel it is a bit under powered for the car.
I would like to go to a 750 cfm. Im not a fan of Holley carbs so I would like to know what other BB folks are using.

Thanks in advance
:steering:

Apr 16, 2003 | 10:20 AM

Crickett

Racer

Joined: Mar 2003

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From: Roanoke VA

Re: What Carb should I use? (conway62)

I'd go with a Demon carb. :thumbs:

Apr 16, 2003 | 10:37 AM

Mystery Machine

Drifting

Joined: Jul 2002

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From: Cocoa Beach FL

Re: What Carb should I use? (Crickett)

Quote:

I'd go with a Demon carb. :thumbs:

:iagree: My SB ZZ4 really came alive after I put a Demon 650 on it! :thumbs:

Apr 16, 2003 | 10:53 AM

Brettmc

Safety Car

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From: St Louis MO

Re: What Carb should I use? (conway62)

Don't like Holleys? :skep: Holleys are pretty easy to tune and reliable. I had a 600 vs on my old 350 69 camaro for years with no problems. I had a 750 vs on the 406 in the same car for years also ( had the car from 78 to 92). Got an 850 on my vette now that runs flawlessly (after i tuned it, that is). To each his own. N-E-Way, for that 454, I would run some type of 830 or 850 on it.

Brett :thumbs:

[Modified by Brettmc, 9:55 AM 4/16/2003]

Apr 16, 2003 | 11:00 AM

conway62

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From: Pinellas Park FL

Re: What Carb should I use? (Brettmc)

It seems that holley carbs always seem to need tuning. Espically if they sit a while. I like to look of the Demon carbs. I think I would like to try one. Not sure about mech versus vacuum secondaries.

Apr 16, 2003 | 11:05 AM

GrandSportC3

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From: Lakeland, FL

Cruise-In IV-V-VI-VII-VIII Veteran

St. Jude Donor '03, '06, '17

Re: What Carb should I use? (conway62)

I think that the best carb for your setup would be the Holley 80528 750 double pumper (mech. secondaries)
The 80528 is the racing version of the 4779. It has the Dominator fuel bowls, 4-corner idle etc...
I use the 80528 and it's the best carb that I've ever had on any of my cars..

:cheers:

Olivier

[Modified by GrandSportC3, 11:05 AM 4/16/2003]

Apr 16, 2003 | 11:06 AM

Zack Wenning

Racer

Joined: Mar 2000

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From: Dayton Ohio

Re: What Carb should I use? (conway62)

If its a 4-speed I'd go with mechanical secondaries, if auto I'd go with mechanical secondaries. :thumbs:

Apr 16, 2003 | 11:12 AM

conway62

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From: Pinellas Park FL

Re: What Carb should I use? (Zack Wenning)

The has a m21 4speed with 3:36 gears. I like the idea of Mech secondaries. Has anyone had experiance with the Speed Demon 750? How are they to tune vrs. a holley?