I wonder what the limits of the stock engine is after you doa turbo and fuel upgrades.
My '93 Mitsu Eclipse GSX was putting out 400 crankhorse from it's 2.0 with just a turbo,injectors and a fuel pump upgrade and over 8 years I never touched the engine but I didn't want to push it too far past that number.
'12 Focus Red Candy SE Sport 5 spd
'99 Toyota 4Runner Sport
'11 Subaru WRX STI Hatch