Not sure man. I don't know much about the SOHC motor. At least that's what I hope you're referring to. I hate to link off site, but here's a local forum you can try. I'm personally just north of Boston. And I know a ish' load of people in NH.
http://www.240sxONE.com They just dumped the database for maintenance, and are working on putting it back together. But it works.If you need anything, check my profile for contact info. I'd be more than willing to give you a hand.
~Eric