Looks like I'll have to find some spark plugs that take smaller sockets, these autolite 65s and champion RN12YC's both are 13/16 and take up the whole spark plug hole.
I’m an Autolite guy and have been for over 40 years. I had an issue when I was street racing and an old time Mopar guy told me to throw my Champion plugs away and put Autolite plugs in. It fixed my issue immediately. I run AR3911 racing plugs with alcohol and AR3922 with pump gas. 5/8 socket.
