honestly... why bother swapping out intake manifolds on a POS motor. no matter what manifold you put on a f23 there isnt going to be any gains. if any thing.. take your stock manifold and just port it out and put a bigger tb on it. but lets say the h22 manifold did bolt up... you would still have to take the head and have it port matched in order to get it working properly. now ask yourself.. is the juice really worth the squeeze?.. no because the f23 is a POS. is for great gas mpg; not for performance. imo... this thread is a face palm.