QUOTE(IronHillRestorations @ Dec 2 2019, 01:25 PM)
The OP says "will be converted to 6"
Sorry thought it said "was".
You will have to decide on several things
- to keep the relay board or delete it.
-where you plan to mount the MSD box.
-where you're mounting the fuel pump.
-what extra gauges you will run and how you want to run the wiring.
My engine harness I deleted the relay board and made it a quick conect to the main harness using the proper connector, but I still have a couple connections on the right side where I mounted my regulator and MSD. My MSD I did a stealth install in the stock location by modifying a /6 CDI mount. Then I still have a secondary harness for some of my gauges, again with a quick disconnect.
Using quick disconnect(s) my harnesses stay on the engine for easy R&R of the engine.
Taking the extra time sorting and planning of where everything goes will make for a much cleaner cable harness install.
If you're not that great with wiring and for the proper connectors Perry is you're best bet for getting a clean harness that is custom built to your needs.