tuning

i need advice,i have 89gt 306probulett short block from dss racing,eldebrock performer rpm heads,1.6 roller rocker also dss brand,f-303 cam,eldebrock performer rpm up and low intake,75mm t-body,4inc powerpipe from anderson f moto,80mmprom mass air meter,24pound inj,fuel pres reg,225bbk fuel pump,bbkshorty headers,summit digital ignit box,elec water pump,elec fan,custom built chip from motorvation,tremec tko trans,3:73 gear, nitto drags 245/45/17. at dyno it pulled 279rwhp 305tourqe,at track i had traction problems though one time i felt it hook better than all previous times it went 13.33 please tell me i'm where i should be or how to correct what my problems and correct them.please keep in mind im no where near a shop with tuning abbilities the chip was sent to motorvation,also i do not have $$ for afm ecu tuner. thank's guys, jason  

I would think your car would make that much power and torque without a chip, and just using the manual timing and fuel pressure adjustments. Chips are usually great for solving drivability problems, but you generally don't find a lot of HP with them in relatively mild combinations like yours. If you think you need further tuning capabilities, you might want to look at the Anderson Ford Motorsport PMS unit, or the Western Motorsports SDS setup. If you're slipping the clutch when you launch the car, you'll want to try and get your 60-ft time down around 1.80-1.90 and that should get you close to the 12s. You're on the right track with the 13.30s. If you want to go faster, you'll need to upgrade your axles and driveshaft (get a safety loop while you at it) and bolt on a set of drag slicks and dump the clutch at about 4000-5000rpm. that should bring your 60-ft times down to 1.60-1.70 and get you another four tenths at the 1/4-mile clocks.  

I think your next step would be to check your injectors/AFR , 24 pounders are maxed out at about 320 crank HP , and thats where you're at. Im using a TwEECer R/T on my SHO , but its more of a mustang tuner , it can let you know the duty cycle % of your injectors. The R/T model Datalogs.