Well, I've since run it in a WM Dago Red. The bearings are crap! Brand new engine, w/ sh*# bearings! They get noisier each time it's run, and when hot, the crank's loose and clunkin' around! I'll run it for while like this, frankly, I don't give a rats ass if it blows... I don't think they make Webras as good as they used to. Had to send a brand new, not run, Speed .61 back, because of a ton of slop in the lower rod bushing/crank-pin. I'm getting 13,500 on 10% w/ an 11x6 APC and Ultra Thrust muffler, but it was 1000 less w/ the stock muffler, which is un-impressive in my book. $200.00 for 13,500 aint that great, I don't care what anybody says...My TT .46 gives me close to that, and for $80.00 too...