Are the Vac canisters on 67's distributor's adjustable? I couldn't get the 3/32" allen in mine, so I drilled it out, then I couldn't find allen hole in spring backer plate. The advance comes on at 15" vac and full at 22". OK? Can I upgrade to a V8 canister? Thanks

Not all of the vac. pods are adjustable and the big block V8 ones are different. (LA engines one works) The adjustable ones can be ordered through Crane Cams, for the points Dist. it is p/n 99605-1 Electronic dist. use p/n 99604-1
These are good kits and come with advance springs, instructions and the allen wrench.
DD