Ive been having a similar problem with my REVO,After WOT into a turn after the straightaway,engine stalls,Check temp immediately and its around '180,replaced glow plug first,NO help, fuel line and filter,NO help,Clutch and bearings,NO help, Last had a new carb so I tried that, seems to be a drastic improvement You might try shimming the head to,and check the O-ring around the tank lid.Worst case it could be a front or rear crank shaft bearing