ok guys im sorry to say i have followed everyones posts about this motor, thanks brandon, sealed carb sealed backplate tried to tune her and she just wont keep a tune 97t plug odonnells 30% and its not bad gas speed ran fine with it, two good laps temps hold two more they skyrocket up richen it up temps keep on climbing, richen more temps keep going up. called associated they said send her back, so lets see what happens????