SHIFT LIGHT WIRING
I have the MSD E-Curve distributor which has all electronics onboard, no external module. There is a green wire for the tach signal which I am wiring to the upgraded tachometer with new guts that eliminates the external tach module. I called MSD tech support last week for information on their tach signal specs and loading. It will drive up to 3 devices. So the nature of my inquiry was to add a shift light spare wire for future use. I have added this wire by splicing into the under-dash tach wire in the new harness I have made.
You can call MSD tech support to verify the ignition box you have will drive 2 devices. If so, just add it to the same wire.
I have the MSD E-Curve distributor which has all electronics onboard, no external module. There is a green wire for the tach signal which I am wiring to the upgraded tachometer with new guts that eliminates the external tach module. I called MSD tech support last week for information on their tach signal specs and loading. It will drive up to 3 devices. So the nature of my inquiry was to add a shift light spare wire for future use. I have added this wire by splicing into the under-dash tach wire in the new harness I have made.
You can call MSD tech support to verify the ignition box you have will drive 2 devices. If so, just add it to the same wire.