MSD is good stuff. Easy hook up too. Lots of nice features. I've never had an issue with any of it with exception to their timing graphs being a little off in the instructions. I run the digital 6
HEI, great stuff, convenient and easy,
Mopar boxes....junk. Have left me stranded, bad ballasts, bad boxes, mopar dizzy's are junk too. Antiquated old junk that is now made in china.
Personally, I embrace modern technology and superior design BUT.. to each their own.