| | Realistic HP?
In the next few weeks i will putting on stage 1 243 heads and a ported and polished stock TB with epoxy mod onto my 02 LS1. It already has longtubes, X pipe true duals with moroso mufflers, SLP lid, and LS6 intake obviously. How much horsepower should I have after the heads and TB installed? What about if I added on a Fast 90 intake and 90 TB? Looking for 400 at the wheels... btw I have a stock LS1 cam.