You’ll notice I said nearly perfect—there was one tube that the steering shaft just barely hit when installed. So, I pulled the left side header back off after marking it where the shaft was touching the header tube. I then laid the header down on a sheet of cardboard (to save the ceramic finish as best I could) and heated the marked area on the tube with my torches. Once the spot was nice and red, I grabbed an extra section of 3/4-double-D steering shaft and used it as a die between the header tube and a two-pound hammer. A couple of good whacks and I had a perfect indentation that was perfectly sized for shaft clearance.