Its really time consuming but its worth the time.I took my wiring a opened it up an split it, i had to cut maybe 5 wire and extended them but thats about it i ran them through my fenders the only wires in my engine compartment is going to be the wires for my injectors,oil sending unit wire, and the distributor coming out of the center of my firewall and the coil . i have my car apart now because im going to paint by engine i welded all the holes and cover the other bigger holes with sheet metal. If you need some detailed info or pictures let me know my email is
stangdriverus@yahoo.com