MSD Three Stage Retard Control - Adjustable Engine Covers Pans & Dress-Up Components Retains factory chrome bezel

Retains factory chrome bezel

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

Constructed from heavy duty

Black / Clear Anodized

30-2340 - 4-Channel Wideband UEGO Controller

MSD Three Stage Retard Control - Adjustable Engine Covers Pans & Dress-Up Components Retains factory chrome bezelThe 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