RHS or EDDY
Sportman - Your question might have been better put - "How can I get this combo up and running better?"
It seems like you feel everything would be better with a little more comp ?
As someone already stated - don't expect worlds of change from the compression increase you might get by running aftermarket heads....unless you are also going to run a much bigger cam - and then you'll need bigger carb, intake yada yada anyhow.