I dont know much about porting except for the fact that it opens everything up and lets more air flow...but how much hp do you gain from a port job? another question is if i were to buy stage 1,2, or 3 ported twisted wedge heads for a pretty much stock engine and intake would it have bad results? I know i wouldnt be getting the most out of the heads till i upgrade the rest of the engine....but would the increased airflow with porting effect the air/fuel ratio or somethin?