Its all about the driving. I have a 350hp SB and have beat every vette I've ever lined up against at street night at the local track including the Z06s. They are quick though. The last Z06 I raced was just as quick as my car. To date I've run a best of 12.0 @ 114mph with a 1.8 60' time on lousy BF T/A street tires. I average in the low 12s.
(This year is going to be a little different.
Picked up a set of drag tires/wheels just for the track and added a 150hp shot of nitrous (just in case)!).