from what i know, if you have a cut harness, get ready for a shit storm. is the motor a bluebird, redtop, blacktop, etc. did it come complete with the ignitor chip and crank angle sensor? i could suggest a few places to do the install. the physical install of the motor is pretty simple it pretty much sits right in there but the wiring was designed by satan himself. let me know if you need any suggestions on who to do the install.