MSD COMBO 1-MSD # 6425 6AL BOX, 1-MSD BLASTER 2 COIL #8202 & 1-MSD MOUNTING BRACKET #8213. MSD Ignition 6425 Digital 6AL Ignition Control With Rev Control. Higher output with 530 primary volts and 135mJ of spark energy. Efficient components use less current to produce more power. Set an rpm limit on the 6AL with two rotary dials in 100 rpm increments. Same bolt pattern as the original 6AL with a lower profile housing. Built-in LED for system checks. All wires exit through a locked, sealed connector. Compatible for 4, 6 or 8-cylinder engines. The MSD 6AL Ignition Control set...