I'm willing to spend a few bucks here and there for things I don't have, but at the same time I need to keep it reasonable. If you mean balanced like balancing the rotating assembly that's been done.
Besides I sort of doubt a track would let a 9 second car run without a cage if they did I would never race there. Believe it or not you want a cage or an 8pt bar at least. No such thing as being to safe....
I'm not saying it was smart, but a Chitown guy who goes by Boost12 was the one doing it in his twin turbo mustang cobra, being it was a "street car" it didn't have a bar or anything maybe to make it look slower at a glance for an easier hustle. And that particular track is known for very "relaxed" tech inspections, usually you don't even pop the hood lol