Originally Posted by
97eclipestuner
i have a mitsubishi eclipes w/the 420a. i'm wondering how much boost can the stock engine handle? i've heard the stock block and internals can handle 300 hp. i've also heard i could probably run 8 maybe 10 lbs of boost. is that corect?
Sure. With a real engine management system. Dont expect 300whp with an AFC though