01-19-2024, 05:29 PM

skinny035

Junior Member

Join Date: Nov 2022

Posts: 16

389 tri-power recipe?

I am building a 389 for my 65 GTO and would like some advice. I have a restored 65 Tri-power I'm using. I will bore .018 over to 4.080. I can use the 068 cam and want it to be between 360-400 HP on pump gas. Please give me recommendations on the heads, etc. It will be a stock crank.

Tom

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