I deleted your quoted reply to yourself. There is no need to "bump" your topic ten minutes after starting it
Welcome to BonnevilleClub, you came to the right place for help
We will get you all fixed up and running good in no time
Your post is somewhat difficult to follow, everything is kind of just run togather and is hard to understand. Can you edit it to make it easier to read and understand?
On to your problem...
First thing... if you have any sort of a heavy foot, PREMIUM fuel is absolutely necessary. Running 89 will cause KR, and kill performance, fuel mileage, and will cause damage to your engine. It only costs about $3.50 more per tank to fill up on premium instead of reular. The little money you save by using regular is offset by the worse gas mileage, and worse performance.
As far as the rough cold start goes... Have you ever cleaned the throttle body? Sounds like the Idle Air Control valve is possibly dirty and / or stuck. That will cause a rough cold start / idle.
Also, check ALL of your vacuum lines for any cracks. If you feel the lines, and they leave black on your hands, replace them. Replacing all the vacuum lines will not cost much, and could be considered preventative maintenance.