I am with you on all that and am very happy to have an 11.50 car that is very streetable and can be driven in any weather from 100 degrees to 35 degrees without any problems. Heck, I use it for a 30 minute drive in traffic every friday night to take my daughter to soccer practice, I was just getting bothered thinking that my motor was producing way less than its portential. The more calculations I do, I see that I am pretty close so am not worried about it.
Besides, if I ever get bored, will just hit it with a 200 shot of nos and see what happens!