Shop Manual

i dunno if everyone knows already or not but on Hybrid Garages website they have the factory service manual for download. its for a CRX but for everyone else the engine stuff is the same, it even has DOHC ZC info

http://www.hybridgarage.com/tech/index.html

scroll down to engine swap information, and right click on 88-91 Civic/ CRX Service Manual, then "save target as" and your all set, its about 9.5 megs, but im on dial up and i downloaded it so you should be cool