Think I still have a problem (help)
 

I went back to the track and ran a 14.23@94.7 MPH with a 2.14 60ft in my 1995 GT and a girl with a 1994 gt stock with the timing bumped up ran 14.39@96 MPH with a 2.24 60ft her car is stock with 106000 miles on it but my car has these mods. 4.10 gears,BBK headers,BBK offroad H pipe,Flowmaster exhaust,underdrive pulleys,MSD Distributor,Ram air,B-303 cam soon to be E-303,Hypertech chip,and if i scan my dcl data it shows my timing to be at 28.0 degrees total advance at 5000 RPM,but the car makes no power after 4700 Rpm. I also go through the traps at 5200 Rpm on its face,some people tell me to put the stock distributor in it and try it but i dont know and i have many chevys to beat also if i scan it at 1800 RPM the timing is at 38-44 total advance but pulls back as the tach climbs.

Help Thands for reading

Well it seems that something is wrong. I am sorta having the same problem with my car. I can just tell that something isn't right and there is something restricting it. Sounds like something is restricting your car too. Try the timing, set it with a timing light.

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89 LX Coupe
306, 10:1 compression, Holley Heads, Intake, and Cam package, 70 mm Throttle body and Mass Air, 30 lb injectors, 255 lph fuel pump, 1 5/8" full length headers, Flowmaster 2 1/2" American Thunder Cat back system, Centerforce dual friction clutch, 4.10 gears
50-175 hp Nitrous Works kit, 5" Auto Meter Shift Light

Anybody else I am taking engine apart this weekend

I would swap distribtors just to single that out. You want around 36 total advance why is it pulling timing out, on a NA car you should have no problem with 36 degrees total advance.

Something sounds restricted not sure if the stock intake would do that but with that cam and gear ratio it is putting you in the rpm band faster.

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Check Out My Site 91GT,Holley SysteMAX II Kit-Heads 2.02" x 1.60" port matched to a 1262,Anderson N-61,24#,76mm C&L,Full MAC exhaust 1-5/8" Long tubes,2-1/2" O.R H-Pipe,2 1/2" cat back, No A/C or PS or emissions, 12" K&N Filter,RNH PERFORMANCE Ram Air,Ron Davis Radiator,Full Suspension,S&W 8pt "X" brace,JAZ seats,3:73's,Welds..etc,4:30's and 31 splines coming very soon!

Thanks i will try that since i am putting new cam in this weekend and intake.