Try searching and looking @ our sponsors buddy.
Turbo stuff, lots of guys support sohc now, check out
http://www.ka-t.org.
There is our sponsor, IAP (
www.import-autoperformance.com), Jordan Gladman on ka-t.org makes sohc kits,
http://www.jgstools.com even has a sohc project turbo car, jwttechnologies.com does some sohc cams/ecu's, and there are a few more.
SOHC is not super popular, but there is support, you just have to look slightly harder.