IM are all tube based, have been for a very long time. The earliest cars are pans, but you are talking about builds in the 1980's at that point.
I'm 99% sure that at least all the recent Beck's are tube chassis, but that's something you'll need to check with Carey Hines/crew.
There are still pan-based makers out there and that's not ALL bad. Especially when it comes to registration. The pan based cars are pretty easy to register. The tube frame cars - work with a reputable builder who has these running in your state because there are pitfalls available. Good builders know how to get the car you buy properly registered in your state. E.g Carey Hines/Beck and Henry/IM. Both great guys.
angela
One of my favorite IM's...
