Sorry I hadn't had a chance to reply to your earlier post.
I like how you're thinking outside the box, but the 250 doesnt limit color but it does limit models within the color to me. 5700#, 360CID, 2.3 charger, With the rules worded in the right manner you would have the ability to use basically off-the-shelf Cummins Hi-Po parts with any rearend and sheetmetal out there, except for Deere.
I got a chance to talk to Brandon today about the KTPA 4750# Open class. I am going to go back over what's been said already here in the forum and what notes I have from the conversations Ive had with folks along the way.
Here's what's chiseled in stone: Steel Flywheel. Blanket. Kill switch. Side shields. Wheelie bars..18.4x38's any cut. Have not decided on allowing radials (need some ideas on that HINT HINT...)
Anything beyond that is a work in progress, and based on some of the suggestions made it could make for a very interesting and fun class. As soon as they post the rules I'll let you all know. KTPA is looking at 8-10 events with the open classic classes, with Greenville/Powderly KY being one already noted on their schedule in June. We're a few short weeks from the beginning of the season so keep the ideas coming. Thanks for everyone's input.