I got luckey,didn't want to pay the big bucks my self.my buddy runs A 80's BUICK Regal with 454 he let me try a set of his old headers and it just so happins they fit.header wont go on with stock starter installed don't no about mini starter.driver side is a bitch motor mount unbolted engine jacked up put headder in,no matter what brand header it's probably going to hit the back side of the lower control arm when you put it in.Im telling you this now since you don't have engine in yet so you can grind on the mount to clear header tube.(DON'T BEAT ON HEADER TUBES WITH HAMMER) I cant say how much to grind off cant be more than ill say 1/4 in,some body beat the hell out of mine with (HAMMER)My buddy said it was not him yea right.any way asfar as i no my headers are HEADMAN-BRAND for BBL G-body 1-7/8 primaries and 3" collectors.coast me $50.00 Do you have any swap-meats you can go to thats where i find a lot of stuff and for the most part peaple are pretty onist but you still need to no what your looking for.