MSD Three Stage Retard Control - Adjustable Engine Covers Pans & Dress-Up Components Micro-Babbitt: a very thin layer

Micro-Babbitt: a very thin layer of lining which reduces the microscopic deflections that occur to a bearing when loaded and thus increases fatigue life

Retains factory chrome bezel

1968-1972 Chevrolet El CaminoFits 1968-1972 Chevrolet Chevelle and El Camino with TH-350

Constructed from heavy duty

4th-gen F-body T56/T56 Magnum or 4L80/4L85 transmission installations require extensive floor cutting

MSD Three Stage Retard Control - Adjustable Engine Covers Pans & Dress-Up Components Micro-Babbitt: a very thin layerThe Three Stage Retard Control allows you to retard your ignition timing in three different stages. You can activate one retard for a nitrous stage and another at top end in high gear for more mph and still have another module left over for dual stage nitrous systems. When activated together, the retard amounts are cumulative so you get the total of the three. For example, if you pull 2, then 4 on the second stage and another 2 at top end, the total