Here is the current combo:94 GT Vert w/56,500 miles (sorry this is long!!) Engine: Stock H/C, Cobra Intake, BBK 65mm TB, PD BD-11a w/ 9lb Pulley, Custom cold air/power pipe with Stock MAF located in fenderwell, FMS Ceramic Shorties, Bassani Hi-Flo X, Borla Cat Back, Crane HI6-S & MSD super conductor wires, MSD cap/rotor, 255lb FP and Adj FPR at 38lbs w/FMU 10:1, and stock 19lb injectores - Trans: Built AODE, Transgo, Tru-Cool Cooler, Stock TQ Cnv., FMS Aluminum Driveshaft, FMS 3.73's, Steeda Ultra Cool Radiator Mustang Dyno numbers w/blower are 242RWHP and 286RWTQ - this seems a bit low to me for the combo? I am seeing 7.9 - 8.0lbs of boost at 5500 when it shuts down and it's at 98mph. (I hit rev limiter in all gears at 5500rpm) - I had a custom burned chip for my combo after a safe tune - sent in the dyno sheets....lost 5hp, so no chip w/ the above dyno #'s Tuning - I can't rev past 5,500 - After reading many posts, I believe this is the factory rev limiter I need to override by installing either a chip or tuning software because of the 3.73's and the VSS. As I lost HP with the custom chip, and my A/F ratios are ok - I just want to get rid of the rev limiter (and use the Crane for rev limit), and adjust the fan? Should I chip or get and EEC tuner or Tweecer or? I have the factory TQ Converter and stock MAF...H/C could be in the future, so I want to tune w/o those at this point. Are these realistic numbers on this combo so far? and what should be next? Thanks much.