8point, I brought up that same topic before. The minimum specs to make a credible submission should be cylinder pressure, deck height, head composition, fuel BRAND and rating. And unless something really earth-shattering comes out, I agree that 175 is about as high as you'd want to go for a street car. My '70 440-6 'Cuda had a cranking compression of 190 from the factory and it was a real PITA to blend fuel for once leaded went away. Since the cranking compression is very easily altered and slight alterations can cause a large effect, it's a good starting point. Without a dyno, software is the next-best tool.

Oh, and one more thing...without knowing the distributor's initial, mechanical, and vacuum timings applied, and the cam timing, none of the above makes any difference...so buy the right tools (adjustable timing light, cam degree wheel).

Doug was kind enough to provide affected RPM range, fuel rating, and engine builders stated compression right away in his request. It didn't take any further questioning to gather data.