With those twisted wire connections, it sounds like a new harness is in order.
I also have a 235 with HEI, one wire alternator and a 12 volt conversion. I wired mine with the intent of installing a new 12 circuit harness and I’m getting near that point
From what I have gathered on this forum, don’t cheap out on the harness as the wires may not be labeled, connections are shoddy and the instruction are non existent. A highly recommended harness is a 12 circuit harness from Speedway.
A one wire alternator does not need the DA plug, but a three wire may be a better choice. You should read the pros and cons before you make that decision.
With that HEI you’ll need to modify any harness you may purchase as it needs a 10 gauge supply. I installed a 60 amp relay for the HEI.
Hopefully some of the electrical gurus will come along to provide additional guidance. Good Luck and keep us posted!
Last edited by Phak1; 02/25/2024 10:17 PM.
