175 main, 48, pilot ncvq needle 4 th clip , air screw 3 turns out, I doubt it's the jetting,if u sprayed the the carb slide with cleaner the oring expands and fucks throttle opening, my suggestion would be
#1 leKdown test to make sure valves are sealing at tdc
#2 check valve lash I'll bet dollars to donuts that where the problems lie , need to re shim valves before you damage something
#3 make sure your excellerator pump is skirting fuel good
#4 all else fails drop it off lol I've built some killer 450s