all i can say is mine ran okay when i got it was a fight to start becasue i had to play with the throttle to keep it running till it warmed up and it lacked power, all i can say though is as i slowly replace sensors it keeps getting better and better, oxygen sensor in mine made it pull alot harder all the time just check to see if its still working with an ohmeter, i suggest doing that with all the sensors
if you need the values ill send them just ask