mp dizzy help

well out looking over the car trying to find the topend pop/miss that i have with the 950 thats not there with the 750/aed/ho and looked at the dist. so i took the cap off and to my surprize its fireing off the side of the term. as soon as it gets to it not after but on the frontside...then i tried to turn the rotor side to side and it moves both ways about a 1/4" or more what gives...i know it should not be that much..so i went out and got a old 1 and put it into a pump drive thats not in the motor and had a little play not alot....how do i fix this problem or is this normal???i know it would be better if it fired on the middle and not the sides....somebody point me in the right direc. please..