I have an 86 mustang that i just built a 306 with Windsor Sr heads for. I am running a C-4 tranny, and I was wondering which long tube headers fit the best. I tried a set of 1-5/8" flowtechs but they were the worst fitting headers I had ever seen. The collectors were way off from the cut outs in the tranny cross member and I could not install the starter lead without having the wire hit the headers. HELP!!!!