Hmmmm, I thought the T/A's were built for road courses. I have installed a few 4 speeds too, but they were all Mopar parts, not a combination of aftermarket stuff, so everything was fool proof. You can't even install a blowproof bellhousing without making adjustments. BTW, the OP is shifting at 7-7500 rpm, which is above the 6-6500 rpm level suggested by the manufacturer. With that rpm and the power he is making, you need to be 100% sure everything is aligned correctly.