Where in Jersey are you. I know a couple of places. Also I higly suggest that if you are going to get into High performance you better atleast be a little mechanically inclined or have a lot of money laying around. There is a place in NY where you can get JDM motors for about $1000-3600 depending on what you want. To drop it in costs anywhere from $500-1500 depending on where you go to what they have to do to make the motor fit.
