[MARKDTN]

I would go about this differently. I would replace the wire that went to the coil in the engine harness where it plugs into the fuse block. All the resistor wire is on the engine side. Crimp a type 56 connector onto your new HEI wire and swap it in the block. You can get type 56 connectors at NAPA, CarQuest, GM Dealer, Ebay, etc. Just be sure to disconnect the yellow wire on the starter.