When I purchased #7024 I had no idea what, if anything had been done to the engine, but the car always felt strong. It had a stock style cast iron manifold and holley carb, but the decklid was notched, presumably for Webers. I swapped out the intake for an Edelbrock and dynoed it at the first opportunity I got, it put out ~400HP at the flywheel.
After spinning a rod bearing at the track I pulled the motor for rebuild and found it has the dished pistons and closed chamber heads (std ports) and possibly a hotter cam (I haven't got that far to tell), but it goes to show that it doesn't take much other than some simple swaps to add quite a few HP.
In the rebuild I'm changing to flat top pistons, C302B heads and solid roller cam for a few more HP still .
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