Starting problem? starter just spins.

my car has a new starter on it its the mini starter from 440 source that is good up to 16:1 compression i'm running only 9.5:1, When i start my car for some reason it does a little like hick-up if it turns over a couple times and doesnt start right away, it will turn over then act like it catches something and slows down then speeds up again making kinda a air sound, its always done that ever before i put the new engine in and even did it with the old starter.

Well today I went to burger king and went to start my car and the starter spun and spun but wouldnt start the car, i put the car into gear in drive and rolled the car, ( This is a push button style 1964 A727 ) Shouldnt you be not able to move the car when its IN gear? shouldnt it catch? i rolled it like 10 feet in gear with ease.... I tried pushing all the buttons thinking something was sticking and didnt do nothing so i cranked the starter then while it was spinning ( i didnt let it stop I know this is bad to do ) i cranked it a couple times and then it finally tried to start the car so i kept cranking it till it started, What can cause this is my transmission going out? I got home tried to start the car after i shut if off and the starter just spins again i just left it, so not i crank it all i want it wont turn the engine over just spins the starter?? Any ideas? sorry long post.
Author: 64Imperial