ok today i installed my 70mm throttle body on my h22 witch is stock all it has is a cold air. at half throttle the car runs good when you floor it thats when it it like looses power and you can feel the car as if its dragging something and if you let off the gas the car dies. if you keep if floored the rpms slowly drop down while still giving you this sluggish feeling. maybe that tb is to big and at wide open throttle its sucking in to much air? and just needs to be tuned? if some one could help me i would appreciate it!