anybody running this little animal? i just got one of this guy and its in my g.t. first day things poppin wheelies, whips acclelerates so muich faster than the original g.t. engine, and screams dude. its the .12 with the red v head and the no pull start, what do you guuys think of it compared to some other engines and can and if how much would it cost to convert to pull start from the no pull start version? ok thanks