What are your guys average bone stock E/T's?

I have an 01 m6 z28. It's bone stock down to the dirty paper air filter and has bald street radial tires. Fastest time I have been able to get out of it is a 13.2 @ 108.xx with a 2.1xx 60' and a 5.2xx r/t(I know that doesn't matter just thought I'd add it)

I always Idle out so that's why I get slow 60's, I don't want to try to leave hard cause I know it will just roast the street radials.

Is this good?