Running 3.73s, bmr adjustable upper, upper mount, and double poly non adjustable lcas only. I do hear some whine at 65-75, but its minor. I would look into your installation.
Guys recently installed a Blowfish 2nd Gen shifter bracket. It helped with high RPM lock out, but if I shift to agressively I still get a slight grind going from 1st to 2nd. None of the other gears do that. Is my trans going out?