no offense to the fellow who mentioned the H22 swap, but dont listen to him; the CRX will drive like a 350 lb man is on your hood - and a ZC is a really solid motor, and not to be underestimated at all- its already quick as it is, but with boost its got potential - but of course, a B16A is defenitely, defenitely more powerful and higher in potential - but theyre expensive - since you never even mentioned either of those, yes the ZC is a formidable engine - and aftermarket support is strong too, bottom end especially; a lot of integra internals work with ZC engines- hope this helps check
www.crx.org for real in depth info