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Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

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Old 11-16-2009, 11:11 AM   #1
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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, 02:33 PM   #2
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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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Old 11-16-2009, 02:33 PM
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