hi, all i am new and have a few questions. i just bought the car and it idels way up and down. it feels sluggish when you drive normal but when you punch it holy sh-t. it has track heat heads, trick flow upper and lower intake,stage 1 cam 75 mm throttle body75 mm mass air,c&l 80mm intake tube1.7 rockers, 24# injectors,long tube headers. do we need a custom chip?? the guy that sold me the car said when i start it wait 20sec for the computer to learn then drive. also my fuel pressure said 38psi is that normal for this setup? please tell me were to start.