HEI conversion help
cant I cut the blue wire and brown wire down a bit to get rid of excess wire and solder them together? then run my own 12v wire from battery to relay to coil? seams I would get a more solid 12v this way.
If you want to clean things up and get rid of old wire, yes.
I'll tell you how I did my HEI, and you can decide how far you want to go with yours.
I cut the two ballast wires all the way back to the harness at the firewall and connected them together, and used those to supply the HEI coil with 12v a single new wire.
All the wires that went to the Mopar box were also removed all the way back to the harness with no complications. (just cut them back and tape em over as they will be dead now)
The original coil wiring was also removed.
The one wire from the two ballast wires to your distributor will do everything needed.
ALL the other stuff can go.
A relay can help if there is a question over available power to your coil, but not needed otherwise. (more complication and less reliability of the ignition system if not needed)