i prefer the 2.0 cuz i think that reving higher will yeild to more power on the track that has been proven. the saying if it ain't broke don't change it sums it up. if a 2.0 works, why do a 2.3 or a 2.4? that's just my opinion. jerry's car is one of my favorite mitsu's around, and i think he is doing his motor and chassis set-up to be different more than anything. plus you cant count jerry, because he is not trying to build his car to be the fastest mitsu ever, but for it to be a fast, fun, and reliable street car. his set up is good for that.