I NEED HELP!!!!! I have everything on the driver side completed with a mac header install, the passenger side is giving me problems, when i screw one of the bolts in one of the farthes primary tubes to put the gaskets on (copper slip over bolts) the primary tude on the other end doesnt line up any more, i checked the hole, im in the right one, lol. SOME ONE PLEASE HELP!!

 

Hmm, I didn't have any problems with my install as far as lining up the primaries. Are you sure your headers are the correct part # for your year vehicle? If you get them in there correctly, they should line right up.