tachometer...

I have a sun pro III that I bought from a member a bunch of years ago..

My engine is a 360. I am running the Mopar orange box Electronic Ignition with the associated dizzy.

I have connected the GREEN wire to the negative (-) side of the ignition coil and have switch # of cylinders to 8.

Nada is happening. Because of the electronic ignition, an I installing this incorrectly ?

Thanks
ian.