360 Advice Needed - Autocross / Street Engine Build

Just flipping the fan around won't change the pitch. It sounds like you have a fan with the blades pitched the wrong way. Oh yeah... lookie-there, in post #93..... Looking back at your pic in post 1, those blades are pitched correctly.

Have I ever told you about hooking up a blow-off valve backwards and making it into a 'blow-on' valve? Took me a while to figure out why the turbo boost would suddenly take a dump when it got to 10 psi LOL. If you don't make mistakes, you ain't doing anything.