MSD Ignition 6AL-2 Series Multiple Spark Ignition Controller Features: New Housing/Digital Circuits Built-In 2 Step Rev Control w/Rotary Dials One For High End Overrev Protection Another Activates Off Cltch/Trnsbrk Set Lnch Limit Higher Output w/Up To 135mJ And 535 Volts Accepts Hall-Effect/Points And Mag Pickup Triggers Managed By Efficient Digital Controller Height: 3.00 Width: 8.00 Length: 11.00 Weight: 3.50 lbs Fitment: UNIVERSAL 0 - 0 NON APPLICATION SPECIFIC