So i have a Revmaster 2100. It has the Revmaster accessory drive on the back. When I went to put on a Slick 4220 I realized the drives don't match up. Is there an adapter someone makes? Or a different mag that will bolt on? I don't want to use the Bendix dual mag. My plan is to run an electronic secondary ignition off the front of the prop hub. Also does anyone here know of a machine shop anywhere in Canada with experience in machining heads for a second spark plug?