Magnum swap starts, does not run

Thanks for the input so far. I tried jumping the Auto Shutoff Relay, that didn't seem to affect it. Tried starting this evening and it's trying to run longer. It's acting like it's missing- it's making me wonder if the injectors are sticking on some of the cylinders. I'll let it sit tonight and try tomorrow. I'll pull the plugs too to see if that shows anything.