Poll on are you running Stock or Modified engines

Choices are Modified in a performance way and Basically stock, cause most cars aren't 100 % stock anymore so if you got a holley instead of factory carb but everything is stock then I would say basically stock, even say you got 340 and use a similar cam even if slightly better I'd say stock.

Generally if you replace parts for performance gain then modified if you use some performance parts as replacement for general repair i'd say basically stock.

You can choose more than one if you have multiple cars.