Go to auto parts store and buy new spark plug wires. Arrange new wires, longest to shortet. Starting with the longest ones, remove old plug wires one at a time and replace them with matching length new ones. (length can be approximate) Do this until all wires are replaced. note: it's a good idea to get some dielectric grease from your auto parts store and coat both of your new spark plug wires ends before installing. Makes them last longer and also easier tune ups.
Do one at a time so not to mess up the firing order.
Just the plain black wires.
The Rookies - 1972 The Voice of Thunder 4-14 was released on: USA: 9 December 1975
A/C spark plug is---R44T and the gap is 0.035
You probably need to be a bit more specific. I've got a 1972 El Camino with a 350 engine in it. I get about 17 mpg now that I just put new spark plugs and wires in it.
Using the 1972 Ford Thunderbird as an example : The 460 cubic inch / 7.5 liter V8 engine : ( has spark plugs gapped at .035 inch )
5.0 or 2.8 engine, .035".