[VintageUpgrades]

In the past six years, we have installed 68 6AL boxes and 59 MSD mag dizzys. Zero box failures, 4 pickup failures, 2 cap electrode explosions. The worst failure cost us a service call from Houston to Harlingen and back in a day (7hrs one way). While that is not a great success rate, it is better than the luck we have had with Mallory or Accel. In their defense, MSD has replaced the defective part every time within a few days.