i also think the turbo is a little on the large side for the motor? you can make good power with the injectors but its the pistons you want to save, and if one damages a combustion chamber on your head all that hard work and money is down the drain>> my bottom end is fully built and i havent even seen 13psi yet with RC 440s!!! i just dont really feel i need to...also you must be coming out of the boost band with that turbo hell if T4s and t3t4s do it that thing has to, hell mine does it sometimes....but i think you will be very happy with it for now...also what size tires are you spinning in 3rd gear??? are they 14's... cause im doing ito n 18s and paradas!!!!haha Just messing with ya

mike