Hey Pitbull, I did that for a while in college... there were a few tracks on Long Island around 1990.
On Thursday nights, when I ran, they raced all stuff on Parma WOMP chassis on a tri-oval... there was 1/32 Winston Cup, which used Lexan bodies, and then there were the hardbody classes, where you used a model kit body.
Late Model, Charger, and Blunderbust. You were allowed to cut the chassis once and use brass tubing or piano wire to stretch it to fit the wheelbase of the body you used. Blunderbust had to retain the whole chassis and use fairly heavy tubing, Charger were allowed a few cuts to remove weight, Late Models could remove quite a bit of the chassis and could use piano wire instead of tubing.
Blunderbust used stock 16Ds, Chargers had 16Ds with some modifications, Late Models used other stuff (I remember I had a Super Wasp, I think?) I still have a Charger class Jo-Han Javelin which was never very successful, and a Blunderbust '66 Cadillac (kit made by Hasegawa) that was a RIOT... I could nerf guys two lanes over with that thing...
They just recently opened a track near here in Waynesboro, PA. I gotta check it out and see if these old things still run...
--rick