DONT KNOW WHATS CAUSING IT

[THUMPER306]

90 GT W/306,MILD PORTED GT40 IRON HEADS,E-303 CAM ,EDELBROCK PERFORMER 5.0 INTAKE ,65MM TB,C&L INTAKE PIPE W/76MM MAF,24LBS INJECTORS,ADJ FUEL REGULATOR SET TO 40LBS,1 5/8 HEADERS,4.10'S ON 275/R4017'S.
THE CARS DRIVES AND PULLS GREAT BUT BOGS BETWEEN SHIFTS.I HAVE NO CLUE ON WHAT CAN BE CAUSING THIS.IT FEELS LIKE IF THE ECU RETARDS TIMING OR SUMTHING.THIS IS ONLY AT WOT FULL LOAD. THX FOR UR HELP.

 

[BK_CAULEY]

have you tried to pull the codes? hold on i will find the list that tells you how to.

 

[BK_CAULEY]

http://forums.stangnet.com/698148-help-me-create-surging-idle-checklist.html

 

[THUMPER306]

I TRIED PULLING OUT THE CODES,BUT IT DIDNT WORK THE TEST LIGHT JUST STAYS ON.MAY BE IM DOING SUMTHING WRONG

 

[90topdown]

Has the ECU ever been reprogrammed for the 24 lb injectors??

Stock ECU's are programmed for 19lb injectors.

If you are running 24's on it, that could be your problem.

 

[THUMPER306]

IT HAS A 76MM C&L MAF W/24LBS CALIBRATION TUBE ON IT. I'VE HAD THIS SET UP FOR SOME TIME ALREADY AND IT WORKED FINE UNTIL NOW THAT IS BOGING BAD.