I have a couple of questions that I hope somebody will be able to answer I have the Harlan shift light (red leds) with my DELTEQ (96 WS6 LT1) setup and the MSD DIS 4 ignition. I'm wondering if I can just plug into the TACH connector on the MSD DIS 4 and set the Harlan shift light to CPC (coil per cylinder) or if I should set the shiftlight as a 4 cyl based on the pulsing to make the tach read correctly ? Any help will be appreciated. The DELTEQ setup uses twin tower coils (4 of them) and I thought I read somewhere you set the shift light for 4 cylinder to get the correct pulses ?

 

There is one more item you need. Its the tach converter or some product MSD sells toensure you tach works. I know it is for the DELTEQ etc/shift light, but I needed the same thing and just never bought it. It needs to go under one coil from the DELTEQ to work.

 

I already have the four tach converters (forgot to mention that in my first post). I just need to know how I setup the dip switches on harlan's shift light and whether I can plug into the tach interface port on the MSD DIS-4 ?

 

I am sorry. I dont know. But MSD's customer service is great, imho. It was fast and effective when I called, and once when I emailed them.
I dont know about the shoft light company, but they have a good rep, so give them a call.