Thread: My first 12 second pass @ Great Lakes Dragway (videos)

Originally Posted by darkhorizon

Try 12.5afr and a hair bit less timing next time.

The tune loaded on the car when we arrived was set to 12.5 AF-R and 20* ignition advance. After I hit 13.1, my buddy added fuel and I added timing. First run after the re-flash was the 12.989 pass.
I'd say it needs a smaller pulley and less timing next time.