on stock mustang motor...guy at autozone said .045 and it didn't seem rite and the motor has slight miss at 1000-1500 rpm...is it supposed to be closer to .035???? thanks in advance...
If I remeber right .045 is also the gap for the plugs on my '93 4-popper. He may have just been looking at the wrong engine size on the screen. Make sure he didn't sell you the wrong plugs too. Should be autolite 25's