I am just looking to install a shift light. I'm looking at the MSD Digital Programable Shift Light. After some research, I've found a possible solution. For me, an MSD Shift Light + an MSD GMR Pickup. I believe their GMR pickup will work by attaching it to the coil wire. If you want to do a tach, I think (but am not positive) that you could just use the MSD GMR Pickup on the coil wire and attach any tach that is programable for 2 cylinder engines. If I try it with the shift light, I'll post results and let you know.