I ran the system for almost 3 years without the timing being controlled by the atomic and it was just ok. Still very much behaved like a carb with the exception of it adjusting to altitude and running off camber.
Because of my 'par' experience I wasn't going to pony up the rest of the dough for a new dizzy and I considered the Ford EFI... but a gift card made it happen. I just got it all set up this week and just drove it.
Wow, what a friggin difference! I felt like a lost a little bit of power when I converted from the carb to the atomic and the timing control brought it all back and alleviated all the prior issues I had with the system. The Bronco SCREAMS now and I'm excited to fine tune it.
After I get some miles under my belt I'd absolutely recommend this system, as long as it keeps running strong!