wireing problems

[adrenalin351]

I got a 87 ranger 4x4 extended cab im doing a v8 swap in.. the motor im running is out of a 88 towncar. it has already been changed over to carburated..I wanna go with the old duraspark ignition like whats in my 79 bronco..I need to know what wires out or the trucks harness comming out the firewall are used and where they go