The injection pump on my 300d seems to not be putting anything out on the #1 cylinder. Yes, I pulled the injector, nothing comes out the tube from the pump. It began running rough and blowing blue smoke at the same time. Just had a new timing chain and the valves done, worked good for 150 miles or so and then just started doing this while running at about 65mph. Is there something that could have slipped or am I probably looking at a new pump ($$$$$)?

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1985 300D Turbo ~225k
2000 F350 (Powerstroke) 4X4, SWB, CC, SRW, 6spd ~148k
1999 International 4900, DT466e (250hp/660 ft/lbs), Allison MD3060 ~73k