Yes, it's the Lake Of The Ozarks, west of St. Louis.
The location is Shooters 21 in Osage Beach.
It's held the last weekend in August each year.
If you like horsepower, there are lots of engine combinations to check out
You should go next year.
-Bruce
Don't want to get too far off topic, so here is a link
http://www.lakeshootout.com/