Im not even going to attempt the .020" steels.
I've had two people disagree with this post JG71B & Sahara... Care to explain your thoughts? Cause whether you agree or not the information posted is correct...
That compression height should put you at 9-9.25 with a 75 c head, with that and aluminum heads you'd be able to run 88-89 octane I would think.
Lol go build your motor with aluminum heads and a .020" gasket and let me know how that goesI don't understand the logic here at all !!!