I have seen 12 second cars with higher top speeds. 60' times are good. That is where the time is. I only run street tires. Summer compound tires. I may get around to replacing my 17" Hoosiers this year, but I will bracket race in a street tire class, so I really don't need the drag radials. That 11 second run isn't a easy as you think. But I think you are right there. Your time will come.