Depends on the level of maturity of who's judging it. For a decent street car I'd say 12's is a good start for a toy. For a daily 13's would be totally acceptable.
Gutted cars, lexan, spools, skinnies are useless if you're on the street, and really just asking for trouble. That stuff was cool ten tears ago to me. Anymore when I see that on the street I think it's dumb. You can drive that stuff on the street, but in reality everybody knows its a track car. If the owner admits it's a track car great, otherwise you're lying to yourself. It's been proven many many times you don't need to gut it to be fast.
Next go-fast car that gets built will be terribly mild (mid 12's) but built to take a ton of spray on top of that.
Preferably EFI, Overdrive, 3.42's, A/C, Pump gas, quiet exhaust, full interior, goes around corners with no drama is the order of the day.