Best carb combo for 396 big block - Team Camaro Tech
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post #1 of 8 (permalink) Old Nov 30th, 05, 09:59 AM Thread Starter
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Laurence
 
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Best carb combo for 396 big block

I have a 68 camaro with 396 block, and am replacing a Torker 2-O (with a Holley double pumper- size unknown) with a new Edelbrock performer manifold. I am guessing the Holley is a square bore carb...so any suggestions for the best replacement would be great! I have a 3.55 rear gear to install- not sure what's in the engine!...roller lifters and cam I think (huge Edelbrock valve covers!) oval port heads...and I want it as a quick street car, so streetable is the goal.
Any advice appreciated

Thanks
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post #2 of 8 (permalink) Old Nov 30th, 05, 01:19 PM
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Re: Best carb combo for 396 big block

The Performer is drilled for both spread and square bore carbs. I would use a Q-jet but a lot of people like a 750 vac.
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post #3 of 8 (permalink) Old Nov 30th, 05, 01:24 PM Thread Starter
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Re: Best carb combo for 396 big block

That's great...I didn't know I could use that carb on the new manifold without a conversion plate. Thanks so much for the info.
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post #4 of 8 (permalink) Old Nov 30th, 05, 03:54 PM
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Re: Best carb combo for 396 big block

396's and Q-jets work beautifully together!
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post #5 of 8 (permalink) Old Nov 30th, 05, 05:04 PM
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Thumbs up Re: Best carb combo for 396 big block

I don't know what hp your 396 is so don't know if it is a 10.25 or an 11 to 1 CR. motor or not??

BUT the great old 750 cfm, Holley 3310 carb. was made for a stock 11 to 1 CR., 375hp/396 motor!!

I bet it and an RPM intake would do you nicely AND I AM a Q-Jet guy!!

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post #6 of 8 (permalink) Old Nov 30th, 05, 09:06 PM
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Re: Best carb combo for 396 big block

770 Avenger is hard to beat!

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post #7 of 8 (permalink) Old Dec 1st, 05, 12:06 AM Thread Starter
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Re: Best carb combo for 396 big block

Thanks for the advice...I was going to try out the Holley double pumper (carbs are expensive to get hold of in the UK!)...but if gas consumption is outrageous I guess I should go for a carb with vac secondries?
The car runs on unleaded pump gas, so I'm guessing compression ratio must be lower than 10 to 1.
Would I need to get a specific q-jet for this?...the guy who is doing the work is a Pontiac man..has spare q-jets taken from Trans ams/ firebirds etc- would they be useable?
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post #8 of 8 (permalink) Old Dec 1st, 05, 06:13 AM
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Re: Best carb combo for 396 big block

Yes, I figure a Q-Jet off either a 350 or 400 Pontiac motor should do nicely..

But I also igure that you will need to make sure that the top butterfly's tip in the way you want them as well as check and see if it opens 100 percent on the back barrels b/c the early 'Bird carb's didn't b/cthey didn't want the 'Birds motor making the same power as the Leader GTO!!

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