Penn Can, Skyline, and Thunder rules are all somewhat close now. I feel that when the best cars from each of those 3 tracks get together, no one really has a advantage. Of course, those are the cars that are built to be legal at all 3 tracks by those of us who want to be able to travel to different tracks. If you built to the limits of the Penn Can rules, you'de only be American racer tires away from a street stock. The class needs rules to seperate it from street stock; that way the guys who want to go fast and spend money can and those who want go slower with older stuff can have a class of their own. I think simple and easy to enforce rules can accomplish this. Such as a head rule (smog heads, no screw in studs or milling, 1.94/1.5 valves), piston rule (flat tops), tire rule, and make them all run pump gas. Some of this is already in place and others could be easily added to seperate from the higher division