very nice bubba, cant wait to see ssome video footage
About the os 160, im beginning to think your right about the over heating because when it runs lean u can smell that after it been running, though one thing i dont get is the bottom is right open i cant open it any more (cowl ), the only thing i can do is open the other side of the cowl. that may work beeter tooo, though i wouldnt think that would make a huge difference.
and ill definatly chnge to bigger fuel lines i think that will make a huge difference...if all this fails i think ill get some stell wool and stick it in one of the exhaust pipes. i cant think of anything else>>?
do u think it could be the fuel tank being so far back>??