Picked up a couple of diodes from radio shack. 50v and 200v. Didn't have any 100v. Think I'll use the 50.
Greg which wire did you use to feed the MSD box? Rosetti said he used a blk w/pur stipe off the + side of coil. Book says blk w/pink. Mine is gray. Cheapy tester light says 11v on + coil wire from ign with car off and key on, 15v with car running.