[procharge94]

I think what you should be doing more research on is your cam selection. Although the heads make the largest difference in 'bolt on power', you want to have an engine combo that works well together. Once you decide on the heads, which I personally would pick which ever of your choices you can purchase for the best price, you should call around and see what sort of cam you want to run. Since this is a blower car, your cam selection will not neccessarily follow the same path as an N/A car. You want air flow to follow a different path as well in order for the forced induction to be the most effecient. A custom cam will be worth every penny, if you are willing to spend that sort of cash. If not, call the tech lines for some of the 'off the shelf' cam companies and see what they have to say. After all, that is why they have those tech lines.

Since much of this discussion has been on what heads to run, and you suggested TFS and AFR 165's; I would go with TFS. As for intake, within reason, the bigger the better. You will be cramming air down the motor faster than it can use. And since boost is measured in terms of backpressure, you want to reduce as much of this backpressure as possible. Someone correct me if I am wrong, but the Performer should have the largest ports of the three you mentioned as well.

But by all means, if someone disagrees with anything I said or the selections I made, please say something. This is just my opinion and its not my car we are talking about.