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What size carb for a Vortec/LT4 Hot Cam Combo?

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Old 11-16-2009, 10:11 AM
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Location: Altus, Oklahoma
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Car: Dad's 87 Bird (Org Owner)
Engine: Vortec 350 Crate Motor
Transmission: TH350
Axle/Gears: 3.42 Posi
What size carb for a Vortec/LT4 Hot Cam Combo?
By calculation (Holley web site, Summit, etc.) a 600 cfm should be enough for a 350.

But, what are you running and why?

Thanks, Tater
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Old 11-16-2009, 01:33 PM
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Re: What size carb for a Vortec/LT4 Hot Cam Combo?
I'm a follower of David Vizard, he does a lot of articles for Popular Hot Rodding magazine, and he claims that larger carbs are better if using the popular RPM AirGap. Which is a good match for that cam with those heads.
 
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