my v8 isnt performing nearly as well as it should. Its pushing out Maybe 40-50% of what it could Really do. My cousin drove it for a while and he broke it because now theres a huge whistle/whine coming from the back of the engine and a bunch of hot air to. Just in the back. What should i do? Take out the engine and rebuild it up? Or swap engines and rebuild. I know i want forged internals because my goal is 400+ hp so however i can get it there.. Thatd be great. thanks for the comments..