500 cfm carb, will it harm my mileage?

6852 Views 2 Replies 2 Participants Last post by 70Mach03, May 29, 2009

1978CobraII

Discussion Starter · Apr 3, 2008

I've been to the preformance sites and I noticed a intake that was single plane. It recommended using a larger 2 barrel holley carburator. Holley offers the 350 and 500 cfm carbs. Will the 500 harm my wanted revving capabilities and gas mileage? Will the 350 work fine for the single plane?

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500 cfm carb, will it harm my mileage?

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