My '86 720 has started to stall.
Stalled twice under load Thurs
night.Then I was cruising at 60
and it stopped running.Both times
it started back up.So I figured it
needed a fuel filter change.Changed it
yesterday.Then my wife moved it and the
it wouldn't start.Primed with gas.First
time started then stalled.Next time started
and ran.Anyone have any ideas?

Starting with simple/cheap things first. Water/condensation build up in the gas tank. Even if the fuel filter is new. Water will screw it up real quick. Try a couple of bottles of dry gas.

Someone suggested the fuel pump.
I've put dry gas and just recently
another additive.

My '86 720 has started to stall.
Stalled twice under load Thurs
night.Then I was cruising at 60
and it stopped running.Both times
it started back up.So I figured it
needed a fuel filter change.Changed it
yesterday.Then my wife moved it and the
it wouldn't start.Primed with gas.First
time started then stalled.Next time started
and ran.Anyone have any ideas?
You say that you changed the fuel filter. There are 2 filters on those, one under the hood and one on the frame by the gas tank. Check your EGR and MAP sensors. Had a problem on my 82 where it would cut out - turned out to be a wire on the fenderwell had worn insulation and grounded out occasionally. Good luck!