Made my first ever track pass and did a 12.6 @ 108.
Pretty much on par for a bolt-on LS1 with a stall. I did have my speaker box in the car still along with 3/4 tank of gas. The temps were in the 90's. So I think the car has a few more tenths to shave off with decent temps.
Car has full bolt-ons (minus pullies) with a Yank 3600 and 3.73's I was on 285/35/18 555R's.
Your times would make make me happy!! I was just learning since it was my first time. Knew I had too much gas and other items in the car. Getting that extra weight out and running in 50-60 temps should help at least get me down into the 12.2-12.4 range.
I have a Lid,filter and the SLP ram air box that pulls the air from under the car. It was just so hot outside that day..