| With the mods you have, either something is REALLY wrong with the car or your not running the boost you think you car. Either way id get someone to go over the car, boost leak test it, compression test it ect. With just intake,exhaust,jwt ecu I ran a 12.9-13.2@109 on every day bridgestone tires with a best time of 12.70@112. With full exhaust and a UR pulley on a 2.1 60 foot.
 My Z i have now I have the same mods except upgraded injectors and on drag radials on a 1.7 60 foot ive pulled a 12.4 out of it on 14psi.
 Your car with the mods you have should be low 13's high 12's on street tires. and on radials high 12's no problem. 
 1990 Acura Integra (Daily driver/Gas saver)
 1994 Nissan 300zx Twin Turbo (Weekend car)
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