Basic ignition

Howdy. I have a SBM on methanol. It's a mild mechanical injection and Vertex mag engine. It's a pig to start. I figure the mag isn't making a whole lot of spark on cranking so figure I'm going to try a conventional ignition. I'm not interested in trick of the week stuff rather simple easy old fashioned stuff. I have a MSD6a box and a mate with an early 1970's dist. Assuming the distributor is sound will this be OK with the MSD unit? What do you gap plugs at for an MSD on methanol?
Cheers