anybody running the MR Ninja MR21? Just curious, a main has it going for $280. all the reviews and press have been real strong.

would be nice to see real user feedback. There are some post in the engine section but not much

i dont own one but a coouple of guys at my local track race them. they seem to have a big bottom but alittle lacking on the top in comparison with the rb c5's and the novarossi p5's

A friend of mine has one, It's rapid. As fast as a Vspec or 421B.