I am from Peoria, and while it is a growing scene down there, there still isn't much.
There is one dyno that I know of that I went to with a couple of friends a couple summers ago, but right now I can't remember for the life of me what the place was called. I do know that is was off of Mt. Hawley Drive on the north side of town.
I will try to give a few of my old car buddies a call and see what I can't find out, and I'll post back here when I know more.
**EDIT** The name of the place that I've been to is R&T's Unlimited :
http://www.randtsunlimited.com/.