i'd just go for a full h22a swap. who wants a 90,000 plus block w/ an h22a head on it? i played with that idea but i know my h23 has 130K on it. That's also why i wont bother dropping a turbo or some juice in it. So i suggest a full h22a swap. go to www.jdmclub.com they have some good prices on h22a's, its 2300 for the engine, ecu, shift linkage, and almost everything else you need to install it. if you don't do swaps yourself contact mr self destruct he's w/ secret services and i heard they do a great job.