Yeah, like i don't really think the idea of dumping another motor into it, and then saying it's still a blaster that can beat a 250r, if you wanna beat him or give him one heckof a run for his money, then do what flotek said, go with that stuff, get technical, rather than trying to just follow my dad's saying, "There's no replacement for displacement." That's not always true, i've got a friend who has a blaster, that has almost all of the duncan racing parts on it, including the national kit, and he destroys our other friends lt250 out at the dunes, he can out-jump, hill climb, and drag him any day. On the stock 200 bore, it's just all about how you tweek the tranny and motor and chassis like the smart guys said