Chris Neiss (DrHolliday on here) ran a 12.42 in the 1/4 and 7.83 in the 1/8 on 255-85 tires on stock rims on an LBZ with an exhaust, AirDog, shimmed FPRV, built trans, spring clamps and tuning. Period. Stock intake, downpipe, boost tubes, EGR, manifolds, up-pipes, ect. It ran consistent 12.4s...