Thanks for the input guys. im trying to learn as much as i can about nissans engines, thats all. Im not worried about having the fastest/most powerful engine, just something to act as a stepping stone into builiding. wow, that sounded gay. but yeah, ithink its the sr20 for me anyways, it seems there are a lot more things to guide me (if needed) through building an sr than going with the unstable KA-T.