I have a Crane XR-i conversion in my Y Block distributor.  Have seen other threads and just now the one on MSD ignition stating that the plug gap needs to be increased to .045-.050 inches.  Anyone running the Pertronix or Crane units increasing plug gap?  To what?  What plugs are recommended for a Y block w/ 9.5:1 compression?

Thx

TC

You gotta have the right tools and know how to use 'em.

TC - Austin, Texas