My 03 ran a 13.6 with only adding a 9" lower pulley (6#), Predator tuner, and Factory Tech Valve Body (FTVB) in the transmission for the quick shifts. Since then, I've removed the pulley and replaced the Eaton with a Kenne Bell supercharger. If I could get some drag tires to use, I'd probably be running mid to high 12 sec range now. The stock wheels will not hook up any longer with HP I'm getting from the KB, so I'm stuck at 13.3 with spinning tires.
Justin
NHTOC#157 / 03 2-tone #9101
444 RWHP / 527 Ft-lbs TQ SAE