bansheefever
06-20-2005, 07:52 PM
what is the best big bore kit for the z 400? so far all i have seen are the curtis sparks 440(athena based) , trinity 440, four stoke techs 465 and 440(same price), and the yoshimura 450 kit... i am looking for the fastest motor kit that will be reliable even if it is not named above it may still be an option....