Charles Probst Diagnostic(5.0 Stang)

While trying to jump start my '73 Camper Special with my '90 5.0, I stalled the 'ol stang. It was parked such that the driver side was banked downward
slightly. It idled fine for several minutes (5-10) and then stalled kinda sputtered like it ran out of gas and now I have a "engine cranks/no start " condition.
Fuel pump sounds like it's powering up with key on/engine off. I don't have a code reader and my last attempt at messing with diagnostic harness years ago was a disaster. Car was running ok prior (occasional low speed stalls) but never had a problem with restart. Before I start cracking fuel lines and blaming TFI/distrubtor etc...does anyone have a similiar experience. I'm posting here, cuz Charles says start checking the most common things first. Oh and it's not the fuel inertia cut off switch. Thanks for any help
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