Im currently running FP black, 1000cc injector, 3' turbo back, EBC Walbro 255 fuel pump, HKS 272/272 HKS cam shaft /cam gear , HKS intake, AMS intercooler kit
excedy twin clutch and ECU reflash. its been running 425hp/ 361tq on dyno.

Ive been planning to get GSC S2 cams , AMS 2.3 stroker kit in the future

but I need some advice if there is any better brands that make more output but same price range. Also I took advice that I should get bigger fuel pump.

What else do I need to get to install those parts?? and how much power would it make on my evo ix?? is GSC S2 cams 274/274 ?? is that the best set up for my plan?

Please help me out Im looking for 550 whp as my final goal.