Well today my brother installed my old ported pi swap engine into his 98 v6 mustang. We dyno'd the car with no other bolt ons, just ported heads and a tune. The car made 255rwhp and 301rwtq! My stock PI engine made 230rwhp/264rwtq. I'm making only 15 more hp than that with full bolt-ons and a tune. I guess doing a pi swap is better than buying a pi engine/car. What do you guys think?