Originally Posted by LUMBERZACK
You are most likely going to need bigger injectors and fuel pump to reach your 300whp mark. Better yet if you have an e85 station close by switch to that and you'll be looking at 330whp.
But don't expect to see the same numbers as someone else just because they have the same parts, because each engine acts differently to upgrades and dynos don't all read the same.
565s should be fine for 300whp...if he wants more then that on pump i would suggest injectors but for no i don't see why he would need to change