..why not try it ,,you never know with cossies...just to add i have also ws kit but had starting hot problems with that ford coil..at least this is the part i replaced ... so i got from usa msd one..after that i dont have any starting issues...
also try a put a bit of dielectric grease on the inner part of the plug leads but be sure that the grease dont touch the metal contact....you can see on spark plugs discolored part on the ceramic..probably that one will have issues..it might help ..cheers