Whats wrong with the car?
I would look into the tune/tuneup to see why it isnt going 11.5X.....425/400 is some serious power, have seen A4's going tens with that...
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1999 Z28 Convertible. 6 speed swap, wide cowl hood, full hockey stripes, and a whining 10 bolt.
2008 Sierra Vortec Max. 6.2 swapped, headers, Magnaflow catback, GMPP CAI, NHT optioned tow package.
2006 GTO, 11.48 @ 118.3
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