Thanks for the kind words guys. I will wet sand the lip and see what happens. As for the center cap, they are 3" in diameter. I would take a blue center because I am sure I could repaint it red. I can't wait to put these back on the car. The car is already a little "Day 2" with slapper bars, Cobra intake and valve covers, 650 double pumper Holley, tri y headers, and Shelby underdash gauges.