whatsisname if your really pulling 257rwk on 13psi and you can only run a 13sec 1/4 mile
aren't you ashamed of your car's lack of performance, my car car is being built up to make 330rwk on 20 psi but prior i made 260rwk and i ran a 11.3 1/4 mile maybe you should check who's dyno your using sounds like your figures and math just dont calculate .