okay 6.5 hrs, later (yes the wife helped keep track) i have the manifold back on. unfortunatly it is being held by 12 bolts, i could not get the last one (closest to the cab) to come out. i heated, and turned, heated and sprayed, heated and waxed, heated and prayed. none of that helped. i could not use the "hockypuck" stud removed, because it was to deep to get a socket on, i could not use the fancy type because, they too were also too deep to get a socket on. so i was left to a pair of vice grips. so i went back to heating and spraying. i have come to the conclusion that this one stud had morphed and actually become part of the block. after saying a few choice words i decided that i had been beat. if i had snaped stud off at the block there would be no way for me to drill straight in to the block, even with a right hand adapter i could not get a drill back to that area and i do not feel like removing the engine. So, i put it all back together, filled it up and started it up. no water leaks and it now has a vacumme of 19 at idle. not to shabby. i have about 2 to 3 threads sticking out past the flange so i will try to find a tapered nut to install on it thinking that if i cant get a little something on it it would be beter than nothing, but in reality what is the worst thing that could happen by driving around with 12 bolts? hw bad could the exhasut leak be? will it do any harm to the engine?