first time to the track with new combo (video inside)

Cody if you don't already have it rebuilt and back together I'd go a little richer on the secondary side. The primary side alsi introduces fuel via the power valve channel restrictiors (PVCR) so the 75 jet there is more equal to about an 80-82 jet (depending on the sive of the PVCR's which varies from carb to carb). For that reason you should go richer on the secondary side. I'd start with # 80 jets in the secondaries if it were me. Then play with jetting to get your best MPH in the 1/4.