Or if you have the mopar performance distributor with Mallery internals, they can be locked out with a screwdriver.. That's what I have.. I checked the phasing at the mid range of timing with a spare cap with a hole in it, and it's firing close to the tower . I had the modified reluctor and wound up not needing it.
71 Challenger... there are settings for crank fuel at different temp settings and the like which you may have to adjust to solve your warm no-start issue. I would definitely got all those minor tweaks done before you change to timing control. Have you downloaded their handheld controller feature definitions manual ? It helped me a lot.