Changing from factory alternator to one wire mustang
 

Im looking to change out to one wire alternator on my 88 coupe w/347 need to know what to do with the factory plugs thanks.

The only wire needed for the one wire alt. is the heavy guage wire that usually runs to the starter post. None of the other plugs are needed but your guages won't work. With the one wire alt. if the engine is running it should be charging.