This seems too bee a good deal from xscream.http://www.xmetalworks.com/products/oem+61x+771cc+top+end+kit/69
Shoot him a email with what your planning on building. The advantage with Jetworks over xmetal is your not forced to run an exact package (Eg. carbs, intake, ect..). He will build a motor that will work with what you want to do.jah have heart a lot good things abourt art but what is hees price ? not muse info on the web side.