Welcome Pete!
Bartlett? TAG go KART!!! CD you wanna go in on a TAG GO KART???
Moving on to your question: I got my motor at
www.mustangengines.com They are in NJ though. I have been to their shop and you can eat off their floor. Lots of people have their motors. They are designed to be very streetable and with plenty of power. They don't do any crazy set ups though. Just proven reliable engines. Got my motor in 2 weeks after making the final payment. They crate their motors VERY WELL. (Check out the video on their website.) And you get a video of the engine running to show it has been tuned. Christian is a great guy and very easy to deal with.
Sid