Edelbrock heads would be a good choice but with the larger 87cc combustion chamber. The 72cc chamber would be a bit high for pump gas in my opinion unless you had dish pistons to lower the compression.
A friend ran cleaned up 87cc castings with no serious port work on his stroker combo for about 10.3 compression. With a mild 236 at .050 hyd flat tappet cam, Performer RPM intake and a Holly 750 carb it made 509-518 hp at 5200 rpm and plenty of low end torque at 570 ft.lbs. at 4200 rpm for a very nice street application.
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