[Spoony]

I'm currently in the same boat. My Superformance should be here by Wednesday. I had a '01 and a '02 Z06, I did some minor stuff to the '02 and it was running high 11's on street tires. I've been assured by dynamic motorsports my 460/535 SPF will run in the mid-11's. 0-60 around 3.8 or so. But as we all know the numbers depend on three things. First, "TRACTION"...second "DRIVER"...and third "THE CAR"....I would guess your 392 would have similar numbers as my 460, maybe a tenth or two different. You should have a solid 11sec car there.