Hi, I pulled out my sb and dropped in my 396 and I'm having trouble getting the drivers side header in, hard to clear the steering box. I tried a 2" and a 1.75" O.D header. the 1.75" headers are really close, if I raise the engine it may work? The engine sits a slightly lower at the rear, could this be the issue? I kept the same engine frame brackets and put new engine mounts, sb short and wide?? I tried the energy suspenion tall and narrow but they wouldn't slide over the mount brackets. Thanks.