1997 Dodge Ram 3500 8.0L V10 starring issues

I’m throwing the book at this truck and running out
of ideas. Bought the truck 2 months ago, have
since done plugs and wires and a fuel pump. Fuel
pump was just changed last week. Up until
yesterday the truck was running, but at an idle the
rpms would fluctuate. Started driving down the road
and truck acted like it was falling on its face when I
stepped on the gas. Truck stalled out and hasn’t
started since.
So far things I’ve checked are:
there is spark at all the plugs
fuel pressure at the fuel rail is 40 in the on position
and 50 while trying to start.
used a noid light on the rail and the injectors are
getting signal
used an ohm reader and tested the crank and cam
sensors. According to what I’ve read they are on a
5amp circuit and should read at about 5 amps
dropping to just above zero when starting. Both do
just that
ASD relay is good
All fuses seem to be good
Disconnected the battery for 20 min to drain system

I’ve run out of ideas, can use any advice I can get!
Thanks in advance!!!