Check the banjo fittings on the fuel line connections between the tank and filters. pay particular attention to the first fitting downstream from the tank. Check both the bolt and the barb of the fitting for accumulated debris.
Originally thought I was not getting fuel to the injectors, now it seems to be drawing air from somewhere. I will check banjo fittings and etc. After bleeding out the air the tractor has been running, but I have noticed a drop in the rpm while under load a couple of times.
Thanks for the suggestions.