The last few posts have been the most helpful so far. I started this new thread because a previous thread ended up with lots of book chapters between differing views.
At this point, my next step is to tear down my motor and see what I have to work with. Then I will get back to the detailed specs needed.
The piston combinations and recent comments on cam overlap and dynamic compression has been encouraging.
I will add updates as I know more.
By the way, I'm planning un using a carb and not the fuel injection or computer.