I have 91 GMC sub. I already conv. it to a 1ton sus. and dana 60s 3/4 ton axles and beefed the frame.The fab work is no prob its the wiring and fuel stuff is what I want. CLEAN wiring like a plug and play setup and where and what engine Im looking for 300-400 hp does painless make a harness?do i need a diff tranfer. case or can I use the stock ....any info will be great:thankyou2: