Uncle Charlie has Bub pipes and I believe a uni filter and runs 135 main jets. Your setup (once the snorkle is pulled and uni installed) sounds similar, so yes possibly. Once you uncork those earlier 790 bikes, they realy breathe well. You might try a 45 pilot jet, 135 main and a shim under the stock needle.
I have a 2007 865 motor with uni POD filters and am only running 135 main jets right now. Most 790 guys with dual pod filters can run a 150 main jet or better. Not so much for the 865 motors.
