Compression ratio vs Porting

Difference between compression and more cfms is you can only go so high with compression especially in a street engine. Most seem to try to squeeze too much CR out of their engine. 9:1 CR can run most street cams and run fine on today's gas, squeezing it up to 10:1 CR is only gonna get ya 10 -15 hp on most street engines but everything must be right to run on pump gas. The worst with more air flow depends on how you go about it could lose you some bottom end power.