I have my 02GT engine on engine stand in garage. Before I plug it in I wanted to have it ported and polished. But, where and how much will it cost??? One guy told me something about option1 matching the intake/exhaust ports size or something....VS. option2 having a special machine porting the combustion chamber, I thinking he called it "flowing the engine." What is the difference in hp and/or price for each option? After porting the heads, wondering advise on which CAMS I should buy...? (might as well upgrade the cams while the engine is out of the car, right?). The 02GT engine with be plugged into my 97GT vert. after it's been modded. The where may only apply to those also in San Diego.