Timing, points, idle mixture, take your pick! Worn points, worn plugs, bad wires, bad rotor / cap, vacuum leaks, pretty much anything that can go wrong with D-Jet can cause this issue. When adjusted right and in proper tune, a 4.5 will never stall. My 4.5 stalled on me a grand total of 0 times there was nothing wrong with it, and once when something was (carbon brush in the cap broke).

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Current:
2021 Charger Scat Pack Widebody "Sinabee"
2018 Durango R/T

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
1999 Chrysler 300M - RIP @ 221k