4 on the Floor is right about the cam alignment...if I remember correctly, you will need to rotate the distributor clockwise just past the point that you want it to line up and the distributor gear will line up with the cam gear. Also, if you have an extra distributor laying around, you can pull the shaft off of it and chuck it up into a drill and use it to prime your oil pump. I don't know if leaving the distributor gear on the shaft will allow you to spin the engine. Haven't tried that one, maybe someone else can sound off on whether or not it is a good idea. Good luck...the 261 is a good motor.
