QUOTE(theer @ Dec 28 2017, 07:11 AM)
There shouldn't be that many extra wires. IIRC, you can remove the whole ECU (and related sensors) and the FI wiring harness separately and save for the next guy.
There is one "extra" white wire down by the distributor that needs to be insulated and tied back - it is 12v switched power that will short out if it contacts ground.
On my '73, the only extra wire is the one white wire off the ignition harness that I believe goes to the supplementary air valve. I'll just tape that one out of the way the same way the factory taped up fog light and intermittent wiper cables on cars without 'those options. On my car, they put a longish piece of heat shrink over the connectors and then looped the cables back and secured them to the harness with narrow electrical tape.
Since I had my harness apart for a complete overhaul, I also deleted the power and ground for the fuel pump and routed a new blk/rd wire from the 14-pin connector to the front trunk where the pump is relocated, and installed a new ground wire up front as well. So my wiring still matches the factory schematic, but with cleaner routing for the pump relocation. I have one other small mod planned for the alternator cable when I refurb that. That is to add a short brown ground pigtail from the alternator plug on the relay board that jumpers over to connect to the ground on the 4-prong FI connector as an even cleaner variant of
Sir Andy's carbed fuel pump power tip. It will be easy to just clip that pigtail if the FI is ever restored.
PO doesn't say what year his car is. Do the later models with pollution control have additional wires that would be obsolete on a carbed engine? Some pics of the extra wires would be good. I agree with not hacking a harness if it isn't already hacked. Those things are worth $$