Hi joe, welcome to the forum. I have purchased these engines from several different vendors and each one seems to have it's own personality if ya know what I mean. I have noticed each one runs a little different and each has its own tic's and rattles. Just read thru the different threads in the forum and take the advice of these kid gentlemen and you will be fine. I do not think it really matters where you bought your engine as long as you get it on a bike and have a blast. It won't be long before your looking for your 2nd kit. Enjoy and all the best.
Why do you have to "put your two cents in"... but it's only
a "penny for your thoughts"? Where's that extra penny going to?