Just go fat. Should be in the 140s somewhere, and I'd go two slow jets up from stock. You can scrape carbon off, Can't fix a hole in a piston.
I have two into one baffled, stainless exhaust with knn pods. I'm running 48 slow 155 mains at 500ft and no real humidity... and it climbs up to 4000 feet everyweekend well. No flat spots no real popping on deceleration (after upping the idle jets) just as a reference.
