Setting Dwell

'64 Cuda said

Don't know what brand mine was but there wasn't any togggle switch. It had a big transistor on the side or top, don't recall. It had flat pieces of stuff like printed circuit board on the ends of the wires (might have been ribbon cable) that connected it to the coil. IIRC it had black thumb wheels on the coil connections & we spun them off & reconnected the old wires back to the coil. Of course, that was about 35 years ago so my memory is a bit fuzzy. I trashed it & didn't look back. Later switched it over to a factory Prestolite dual point distributor that turned into a small diagnostic nightmare.

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Sounds like the same Delta box. Mine also had the green mini-circuit boards at the coil connectors, with big black thumbscrews, and the exposed TO-3 transistor on the box. The bypass switch was a little red square on the left side. Good you didn't find it because it never had definite feel that it was toggled in or out. Better to bypass it at the coil like you did.

BTW, while on add-on boxes, I picked up an interesting one cheap on ebay - MSD PN7000 Stacker, sold new by a surplus outfit. You hook across the coil and it senses when your regular ignition fires and adds a CD multi-spark to it. It works with either points or electronic ignitions. They had a whole line, including some boxes for distributor-less cars, but appear to have dropped them. I haven't tried it yet, maybe I'll see why.