The new rings were pretty much right on. I took about .001" out of both to give a little extra room since these engines run hotter than a water cooled. So, they ended up at .008" top and .010" bottom. And yes it is nice when everything comes together nicely. I figure I will need a little tuning on the carb, but it seems to be right on I just upjetted two sizes. I haven't done more than about a 2 second full throttle pull yet, but I can tell that opening up the head, intake, and exhaust helped air flow tremendously. I also took the carb completely apart and ground down the throttle plate screws and sharpened the leading edge (of the throttle plate) to improve air flow through the carb The intake and exhaust note is louder and deeper. I have an iridium plug, but I'm gonna make sure I have the carb just right and the motor broken in before I put it in, so I can see how much of a difference it makes. I'm gonna order the trans kit tomorrow, have it in three days. I'll keep you posted of my progress.