now i have read, correct me if im wrong but the swap from a f23a4 to a h22 they said is not a big difference, yeah i know the hp is about 60 more but my plans are to throw a drag turbo kit on next spring, but my question is about swapping the head off a dual overhead cam h22 since the blocks are the same to a point, but if anyone has any suggestions, also i know the h22 5sp manual will mount up to the f23a4 also, so if anyone knows anything about what is needed for the swap, the help would be appreciated, ppl dont see too much about the engine im describing so im kinda desperate........well thanks anyways........