Andy Having paw s from 03 thru 40, I think you may be on the right track one the carb issue it is quite dated and a little crude but it does work and has for 50 years, howevery I mounted a MVVS carb on my paw 40 and of course ran tank pressure, a whole new ballgame throttle well no loadups great idle. As pointed out wide open in c/l use the orginal PAW carb is fine RC use is a different
animal martin