Thanks for the information, I will go with long tube, 1/4 shim and may look I to a hot rodding steering shaft to move it out of the way. What ever it takes to reduce dimples. This is why I went with 360 instead of 440, clearance.
Nice. Luckily I had no issues with my factory steering column. I'm glad I spent the dough on Doug's Headers, others like Hooker are way closer to the ground.