Originally Posted by Kilrbee
The wires will be in two of the open spots in your bulkhead connection, Your service manual will show where the wires will go. The hole marked "B" is for the tach wire only.


Correct...it connects at bulkhead. Pretty sure it is one of the two bottom outside corners. A look at the wiring diagram will clarify it for you.

70 Road Runner 383-4 4 speed FJ5 & black guts
70 Charger R/T 440-4 4 speed FJ5 & white guts