Re: hp estrimate again.
I agree with 67_C-30. Probably around 300. The cam doesn't match the rest of the engine. Late 70s cylinder heads were usually light duty and not suitable for high performance engines.
By the way, a Performer RPM almost matches the cam, but I'd keep the Performer and switch cams instead. It will take more work to build a high rpm engine, and won't be that great in such a heavy vehicle. You want torque, and lots of it!
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