I have a set of Pro Comp aluminum heads and the standard Autolite plugs don't thread deep enough into the head to place it in the optimum position for spark. The length of the threaded portion (reach?) is too short.
Does anyone know of a plug number, preferebly Autolites, that can thread in deeper that has a longer threaded section ?
Thanks-
Scott
Does anyone know of a plug number, preferebly Autolites, that can thread in deeper that has a longer threaded section ?
Thanks-
Scott