[TimT]

FWIW I installed a "Allison" optical trigger in my car about 12~14 yrs ago..... oh and then crane bought the company and it morphed into the crane trigger (XR-700)

I had YEARS of service from this trigger, I used it to fire the stock cd box, a msd (5 I think), and finally a Crane Hi-6 system.

I twin plugged my car this year , and went the electromotive route, So......

I sold my whole dialed in igntion to another fellow who loves it

( it was '67S distributor, custom wires, Allison trigger, Crane Hi-6)


Oh and early tachs ( pre 73 I guess) need a different signal from the ignition to work

a hot ignition cures lots of wber woes '-)