Ok, you guys have me really confused on what I should do. I have a cmp clone p-40 and was planning on putting a st 2300 on it and after reading this thread I'm not sure anymore. I dont like to go crazy on r.c. spending so I was thinking I could get some real power for this plane for not much money. I was planning on running this engine in the stock inverted position on this plane with the stock muffler and fuel tank correctly positioned for the carb. Should I get good reliable power with this setup. The plane is suppose to have a 140 4stroke so I figure I will be spending most of my run time at half throttle or less.

Are most of the problems you guys are having associated with the old italian carb or the new Chinese carb?

Would I be better off running a gms 1.20 instead? I really dont like the giant muffler the gms comes with.