HEI power wiring...

[Jabes1]

I have a 74' with HEI ignition. The factory HEI wiring is completely gone. I have it powered incorrectly and its melting the insulation on a tan wire Im using from the firewall bulkhead.

I would like to properly wire the Positive + power supply to the coil. Looking at the schematic (my interpretation) the + is a 20G Y (Yellow) labeled 20Y 7A which splices to 20Y 7B. The 20Y 7B looks like it attaches to the R terminal on the starter solenoid. Is this correct?

From 20Y 7A it also splices off to 20 P/B 3. What is P/B? is it pink or blue or purple or blue? This wire then appears to terminate at the firewall bulkhead engine harness terminal 3.

The schematic also calls for a 1.35 Ohm resistor for the V8 engine where is splices at 20P/B 3. Do I need the resistor?

Basically do I just need to run a wire from the + Terminal on the coil to the R Terminal on the Starter Solenoid, add in a splice wire back to the number 3 terminal on the firewall bulkhead engine harness?