Well, I ran 3 tanks through it today...it idled well, never stalled(unless I held the brakes too long),other wise it will sit and idle fine.I think my Raytek is calibrated incorrectly, though...as I checked the temp several times at around the 1/4 left fuel level...and it showed the engine pushing 280!!!I still have lots of smoke coming from the pipe though, at high throttle.I still have not run WOT yet...figure to wait a couple more tanks.Also, I dont know if it is shifting...both spurs do show wear, but it doesnt seem to be moving very fast...almost like the engine is winding, but not pushing it as fast as it should go.Might just be cause I was on an open lot.I dont know :S.I thought Id bring to my shop on tues and see what they say about both issues.