since you asked....
IMO this is the all time best deal in ignition systems:
http://www.summitracing.com/parts/NAL-93440806/
IMO the MSD stuff is way overpriced and not very reliable. Especially, the Ready-to-Quit HEI stuff. This is china sourced and not any better than the $53 Fake HEI pushed by Skip White, the King of all ebay cheap china junk.
did I mention I have my own opinions of this stuff?