Plan on trimming the firewall (not too bad) with that setup. I had to on my '85. Heddman and a few others make the headers that piece together around the steering , so you don't have to pull the column. I think the steering will be in the way of your current headers. I made some mounts, using others as a template, but have a tig, and the metal to do it. The 'bought' mounts are worth it! I use the B&M Pro Ratchet on my setup (sb350/th400). Works GREAT! Before this motor, I had a sb 400/th400, with the Heddmans, and 4.88's with 13" racemasters slicks, and put down consistent 11.00's, with no weight in the back, nor any traction problems. I now run on the street with my new setup, and the M/T Sportsman Pros, (17" ish x 2 tires with 8lbs of air) with a spool, and can't get her to hook very well without slicks. I use Hoosier 33x16x15's, and now she HOOKS!! Good luck! Pm me with Q's, and I'll give you my phone, 'cause all the typing sucks! Got a s-load of extra parts too! OR... Just buy this one!!!