Well.... got the carb on the engine. But wasn't not happy with it ! the venture size is a 15. maybe this engine cant handle it ... I even opened up the exhaust port some to see if that would help, nothing ! it was really not responsive to the throttle and the mid range was horrible ! once you got it to WOT it was ok, and if you went to WOT from idle it would die. put the old carb back on for now. and it is pretty snappy with it a all ranges ,maybe it is as good as it will get. The stock carb is 13.5mm venture that I cleaned up inside a bit.....who knows.. :-(