asdadad

Ok guys; I need just a little help on this one and I am sure it has allready been covered elsewhere. I just got my first 7: an N/A 89 GTU. I researched it and it was really a good deal. Anyway, I went out to start it today and it started great (Like always). However, I didn't notice it was in gear and pop the clutch and stalled it. When I started it and let it run 1-2 min I went and stopped it on a hill. It went strait up to 4500 rpms and stayed there. I let it role back into a flat resting position and gave it some gas. Then it started to hickup from 1-1.5. It acted like it was going to over-rev than die. However, it did this for about 20 secs then it went right to a calm idle. I am not all that great with a clutch and was wondering if this was the problem or was it internal? THanks for the help