MP Stage 6 heads

Aww,come on! They're not junk. I ran a pair with a mini express mushroom tappet cam. Ran good til a tappet broke. Stepped up to a roller cam and kit. Then all the seats pounded out. They were 'well used' by then though. Ya sure you have the right offset rockers? We had no clearance issues I can remember. A little grinding wont put you into a water jacket. I doubt it. Then again aluminum is repairable.