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post #11 of (permalink) Old Mar 26th, 20, 8:13 AM
Tech Team
Join Date: Jan 2019
Location: Atl
Posts: 150
Re: Need 427 build advice

a 427-390hp L36 engine back in the day had 10.25 to 1 compression, a 214/218 @ .050 with .461"/.480" lift with a quadrajet, a modern intake and carb should get you close to the hp lost by lower compression so you need 35hp with a cam change assuming no porting on your heads, use one of those online cam calculators such as the one Compcams has
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