FOR SALE: FAST FLASH FUEL AIR SPARK POWER PROGRAMMER FOR GM ENGINES. PART NUMBER 170327. SEEWWW.FUELAIRS[ARK.COM FOR TOTAL DESCRIPTION. FEATURES INCLUDE: CALIBRATE SPEED LIMITER TO MATCH THE SPEED RATING FOR YOUR TIRES. CALIBRATE FURL OCTANE LEVEL FOR VARIOUS FUELS. ADJUST THE SPARK CURVE FOR FINE TUNING THE IGNITION TIMING. RTECALIBRATE THE SPEEDOMETER FOR GEAR AND TIRES CHANGES. CHECK AND CLEAR DTC'S. CALIBRATE FOR GEAR RATIO CHANGES FROM 2.73 TO 5.13. CAIBRATE FOR UNDER/OVERSIZE TIRES FROM 24" TO 43.75". ADJUST THE TRANSMISSION SHIFT POINTS FOR MAX TORQUE. ADJUST THE SHIFT FIRMNESS FOR EXTENDED TRAJNMISSION LIFE. READ LIVE ENGINE DATA. NEW IN BOX. OVER 350 DOLLARS NEW. FITS 1996-2000 GM MODELS WITH 4.3/5.0/5.7/7..4 L VORTEC ENGINES. 1999 - 2002 GM C/K MODELS WITH 4.3/4.8/5.3/6.0/8.1 ENGINES. 2003-04 GM MOFDELS WITH 4.8/5.3/6.0/8.1 ENGINES. 2001-02 GM S-10 MODELS WITH 4.3L ENGINES. 1997-2004 CORVETTE WITH 5.7LS/LS6 ENGINES. 1998-2002 CAMARO/FIREBIRD GTO 5.7 LS1.