need help i purchased a 68mm throttle body for my b18a1 teg. i have a header high nflow convertor exhaust msd ignition system with external coil and intake the map sensor is supposed to be mounted on top of this throttle body but mine is mounted on the firewall and when i installed it made the car run awful idleing and when i tried driving it had a miss and had to rev the gas up to pull out or it didnt want to go. do i need to make other mods before i install this such as bigger fuel pump and injectors among other things.