Sick Week....

Why have they banned aluminum heads in so many classes?
Can't use them in Super Street, 275 Street Race, Street Race, Naturally Aspirated Street Race (Any version).
Just because you have aluminum heads shouldn't mean you have to race against million dollar 6 second pro mods.

I know you could just race Dial Your Own (DYO) index category, but c'mon... someone shows up with a stock suspension, steel bodied, big block Dart with aluminum heads (far from exotic) and you have to go up against 6 second cars?
I get that aluminum blocks would be exotic, but aluminum heads are a common upgrade on street cars.