Just thought I would post a little info on my burn down in case any one else is running or thinking of running a similar set up to mine. This happened last weekend on the lake. Had made one 1/2 mile pass at about 3/4 throttle, turned around for another run and shut down have way. My set up is Speedwerx single, reeds, spacers, headcut, airbox mod, D&D Y-Pipe, injector perfector with 290 main, 93 octane gas. Also running 22/40 gears. PUt the Y-Pipe on late last season and had probably 200 trail miles on it, no long hard runs. Plugged looked fine then. Obviously at 3/4 to top end with the 290 and the Y-Pipe I was on the lean side. Was about 33 degrees out at the time of the burn down. Also an issue I discovered at the time of tear down, pipe had come loose on the can, how the *uck that happened, no clue. Well motor is back together with fresh pistons, however I will be running the stock y-pipe. I have not had my sled dynoed but by reading various posts have heard Speedwerx pipe and D&D Y-Pipe not a good combo. Anyone have dyno info on this combo? Bottom line, error is on me for being too lean. Just a heads up for anyone else out there with a similar setup. Pistons will be added to the wall of shame!