RUSS, Thankyou for suggesting i re-submit. I need to know the formula for how much to mill from my intake face and ends when the heads are milled. The machine shop does 99% sbc circle track stuff. The sbc angle is way different.My best friends brother is doing it in his spare time to help me out(i'm laid off). My 401 is stuffed inbetween a TON of SBC's. He is not familar with the 90 degree head to intake ahble setups.... They do maybe one or two non chevy's every summer!! Thanks,Joe __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com