My Car recently made 582 hp and 470 tq at 36 psi on the dyno using pump + meth. I am in the process of adding the following:

Bushur 272 Cams
Ported Intake Manifold
Larger Throttle Body
Ported Head
44mm Waste gate

PS = Waited until 4500 RPM to go WOT

Im just wondering how much additional HP I should expect to gain? Is there room for improvement? I know hp varies significantly depending on conditions and the dyno used. Im just looking for a ball park. Any feedback would be greatly appreciated. Once the mods listed above are complete, my setup will pretty much be maxed out. I'd like to push the stock ECU as far as I can.

Yes, my car has the stock ECU Flashed by Jestr. Thanks

Current Mods are listed in my SIG. If anyone can get a larger image of the dyno to display, I thank you in advance...

 

why?

 

We were having issues with knock at first. We decided to "roll" into the pedal rather than flooring it at once. We figured it out, but just stayed with 4500.