I always had my #1 two holes to the left of the front cap hold down clip as you’re looking from the front. At top dead center with your timing mark on 0, the slot in top of the oil pump drive gear is supposed to be parallel to the centerline of the crankshaft. My #1 plug wire for my old Hemi and my 440-6 motors was always in the cap terminal closest to the front of the valve cover but I think it was just two holes towards the passenger side of the cap hold down clip?