well the motor has IF i rember right right at or a lil over 250 some PSI across the cylinders. Its a jdm motor. I just wondering cus like its in a fully loaded 99 si and i went a 14.5 1 time and want a lil better but it seems the more i do the worse it gets lol. I was hoping a tune would fix that. Any recomendations on where to go and prices?? I live in the lower part of va but will travel