Someone can chime in, but the only things that he had that was different was I think stage 1 heads and a cobb TB. I think proper tuning will show the same gains as heads, and I may be happy while I save for the labor, cost, and core charge of heads. My second income tax return that I'm getting (amended) is enough for My Cams, installation, clutch and flywheel plus installation, bored TB, and furniture for the wife.. I also NEED to be able to pass emissions.