older Malory rev limmiter hook up question

[73_RoadRunner]

have a 73 RR 68 440 car with 4 speed i got the car and there was a malory rev limmiter box in the car but it isnt hooked up all the way it is blue not sure how old it is i'm sure it is old there are 4 wires coming out of the box under the hood 2 of the wires run in to the fire wall and run to the rpm selector where you can turn the dial to what rpm the other 2 wires are red and black he had the black wire gounded to the firewall the red wire isnt hooked up does it run to the coil or distubutor? is that all the wires i'm sapose to have could you tell me how to hook it all up right thanks

[73_RoadRunner]

there are 2 groups of wires the 1st group has 1 red wire and 1 black wire the 2nd group of wires 1 wire is red 1 wire is green and the other is black and the run threw the car the 2 are ran to the selector swich and the other is running to the fuse box so that leaves the 1 red wire that isnt hooked up where does it go the coil? or something? is the rest of the stuff hooke up right?

[1972roadrunner]

never heard of it... i have a Mallory Tach that has a built in Rev limiter....all the wires are the same (red, black, white, green)...

Red = 12V+
Black = Gnd
White = Dash Lights
Green = neg (-) side of coil

i dunno about your box but this is what i'd spring for...easy, simple...less frustrating...

good luck!

BTW: my guess would be the neg(-) side of the coil, but i dunno...