Have not pulled front cover, but the cam gear looks and feels OK. Pump gear (can't actually see through vac pump hole) feels like the same as the vac pump gear, kinda gnarly on the edge of the teeth. So planning to replace that, hoping I can get away without replacing cam gear as that would suck to do on the truck. Thanks Mike, I will let you know. My guess is that the cam gear was continuing to spin the unconstrained vac pump gear and forcing it up into the injection pump.
Idk if I noticed power being down until right before I shut it off and it was clearly misfiring, could hear and feel that. Could slipped timing make just one cylinder off? I wouldn't think so. In the few minutes before this all happened, I may have been seeing an occaisional random puff of smoke from the tailpipe. Maybe I was losing an injector anyway and it didn't show up until I stopped... completely unrealted.
I think I need to get it back together, timed right and go from there. I really don't think I hurt the pump.