There is nothing bad about a GMS engine that a little loveing care would not fix like not driveing it into the ground and think its made of steel or not keep it clean or not break it in right or not tune it correct in the first place sure go out and get a high dollar OS peice of crap and read more of persons here that do not like GMS motors i wonder how many even own one but has something to say about them your not going to get a good answer here make up your own mind GMS is ok and a lot cheeper.[:@] good luck bro