Actually looking at them both since my last engine was a grubee the head milling is quite different to be honest the stinger looks totally different and the carb is different as well. I just got the SD kit today and i installed it in about 2.5hrs.welcome to the forum
AFAIK,,,stingers are grubee's rebadged by devrou
his ebay ads used to be, word for word, the same as grubee's,,,
you asked a question, at least I gave an answer
I DID say 'as far as I know'![]()
That's a good idea, I never used amsoil cuz I always was told opti is the best