I'm running autolite 45's. They are gapped at 45 but I was reading that with nitrous I should be closer to 25. I have an aftermarket MSD ignition 6AL2 and stock distributor. I have a stock 302 short block.
you are running only a 125hp shot and your compression is around 9 to 1. you dont rev your motor past 5000 rpm. i would try staying where your at or droping down to .035 gap.