Mine with a K&N CAI, Edelbrock 50 state legal shorties, true duals, and street tires went 13.1 @ 104.5... not bad IMO. Not to mention the tune was off because the tuner said he couldn't get the car to run on his tune.
when was this? the last thread u had up, in 1/4 slips at least, you said you were running high 13s. its hard to believe a 13.1 out of an lt1 on street tires. sorry for being skeptical.