New Msd 6al Digital Ignition

[gt42lasersn95x]

Just putting in a new ignition do I have to leave the stock controller pluged in cause there are a lot more wires in it then the msd harness

 

[revhead347]

It's easier to leave the stock control module in, and interupt the circuit to the coil.

Kurt

 

[gt42lasersn95x]

so should I replace it because it was telling the computer it couldn't control spark at high rpm