I see your two problems now....
1) your driver side a/c vent is blocked; and
2) your car isn't wearing its foil hat.
Well........I guess there's a third too, it's carb is missing 😉 (but I know you're thinking long term about that upgrade)
Seriously though, it seems strange to me that all this time you can get it to work on a short run, but then it dies - going all the way back to last year's pizza run, and before that even.
Just got off the phone with them, they are saying plug wires since the Summit brand doesn't list a specific resistance. Then they want to check the battery ground and if its neither of those they say fans/alternator is a last possibility but he says isn't usually those. Says that it sounds like it dumped either the tune and/or firmware with all the no data's