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I just brought a 1965 Pontiac 421 engine into the machine shop. I will be using #670 heads and the original tri-power from the 389 that was in vehicle.
I'm looking for suggestions on piston and Cam applications. I'm not looking for big HP. Id be happy with 375-400 HP.
Also I have read that i will need to use push rods from a 400. Any input will be appreciated.