Camshaft wont fit

You pretty well nailed it on the head. I discovered that the plug in the rear was installed backwards...It was just dumb luck that the comp cam was just a little shorter and worked. Will be pulling everything back apart this weekend. Im just ready to drive the car! :burnout

Just so you know, the cam plug does install backwards as compared to all the rest. Was it installed reverse from that? If so, then itis indeed in wrong. It should be convex side out.