Any ideas on what the car in my sig will run in the 1/4?

I don't know if this helps but my 85 firebird with an old truck 307 with nothing but a comp magnum 270 cam a set of headers and an aluminum intake on drag radials and 3.73's ran 13.60's. It's weight with me in it was 3000 lbs. Thats with stock 1.72 valves 76cc chambers and dished pistons. So assuming the weights are close i'd put it in the mid 12's. Traction's gonna kill you though so it could be slower if it doesn't hook. Mine still spins a little with 10 psi and sticky drag radials.

I would say high 13's and thats with traction. Your 3.08 gears are killing you, along with regular street tires. If you want to get low 13's to high 12's your going to need at least 3.73 gears along with some sticky tires