I'd like to just say that nobody is arguing 10 to 1 compression on the street...
The issue is cyl pressure and there is a general guideline... kinda like everyone knows "pump gas street motor for idiots" and then there is the ragged edge different animal all in it's own that is closely dialed for max power in a very particular climate and octane to the titty nipple. That is for the advanced. Intake close @70abdc is in the realm of late, not terribly, but old school .509 is around the corner. You could close in the 40's with a roller and not ping...& with a better plug location and a less coffee can shaped chamber you would already be in clear. What am I saying? Idk.. some people need not make it into something it aint?
lol You got a handle on it, it sounds like. Neat stuff... But can we get a cranking number? Fer all we know.. it cranks 155 and it's all in a bad carb tune. jk
Been years..but I remember mine not liking 91 w/165 cranking & mp .460/268 solid.
Thanks for sharing.
