I use the MSD Launch Control with 3-step #8735 and an old 6AL #6420 ignition. Been running it for years. No issues after hundreds of passes.
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MSD 8735 Launch Control Module Selector
To help drag racers achieve even more consistency, our engineers have incorporated an adjustable low rpm stage into a Three Step Module Selector! This allows you to make adjustments in 100 rpm increments from the driver's seat! The Launch Control Module features a shielded harness for increased...
