Mine does this, particularly decelerating from a constant cruise out of gear.
It also misfires erratically, just a little.
What my problem was, was a low idle speed during that engine deceleration period. When the engine missed at the wrong moment, it died.
I just opened up the idle screw so it idled at 900 and didn't have an issue since.
Still misses erratically though, I suspect leads, cap or dizzy but I am not bothered as I will be changing it all soon anyway
so no help there.
Try the idle screw, see if it helps?
Proud TQE Operator and President of SEFAG - the Society for the Elimination of Ford Automatic Gearboxes
Pacemaker headers + 2.5" exhaust
EF Fairmont interior
Lowered King springs
5 speed manual
Newest mod: EF Ghia wiring loom and dash