What needs to be done is there going to both need complete wiring changes. Place Racing and HAS sport make the special motor mount kits for the B16a. This is a much more common swap. With both motors you will have to wire in the VTEC. Now for the H22A there is no mount kit that I have seen yet you will have to beef up the front suspention a little youre going to have clearance problems and if you havent went to the hybrid honda web site and every where else on the web they warn against it for all the hassle you will have go with the GSR motor you'll spend less in the long run maybe and there are very few H22A that are faster than GSR 's If H22A swap was that good every one would do it.
Thanks
Chad