car won't start after head reinstall

[Rosco]

Well, I found out it was the distributor. It was on the #8 cylinder plug. Guess that stuff happens when your up at 330am finishing a car and haven't slept for 2 days Anyways i got the car running at 10degrees with no computer timing. Hooked the computer back up and let it run for a good 10 mins. Then i advanced it to 14 with no computer. Cars is running like a gem right now. I was wondering what I should be setting the idle to? Right now i have it at 950. I wanted to set it lower around 800. It seems to run fine with idle at 800, except when i turn the wheel when the car is idling the rpms drop out to about 500 and the car tries to compensate and will jump from 500-1100. Giving it gas will make it jump back to idle. So i was wondering if there is anyway I can fix this?