My stock 77 has been acting up over the last couple of weeks. It will stall while driving. Once on the expressway, once on side street and once while turning. The engine shuts down suddenly. The rpms slowly go down until putting the clutch in and then they drop to zero. Starts right up after about 10-20 seconds. I originally thought it was a rusty fuel tank clogging the lines but after today i am unsure. When it happened today my radar detector gave me a low voltage warning. The detector is always hot/on unless I manually turn it off. Could this be an indication of an ignition short shutting down my engine?

(I have a new alt-regulator and battery. I have performed the ECU tests and 4 or 5 months ago replaced my ignition module with a used one.Fuel pump is 1 year old and pumping 38 unstarted and 30 while started.)

Check the fuel filter. To start up right after shutting down, sounds like the filter is clogging, and when it sits the dirt settles back to the bottom until sucked up again.

Or check the connection at the temperature sensor.

new temp sensor. All the usual stuff has been replaced and checked, afm etc. the thing that makes me wonder is the low voltage warning that came on when it stalled. That wouldnt happen with clogged fuel lines etc.