Has anyone ever heard of www.speedomotive.com? I was looking into one of the 383 stroker kits, and was wondering if anyone knew if the parts were junk or worth it. Seems like a deal? Here is the stroker page link... http://www.speedomotive.com/CHEVY%20STROKER%20CRANK%20KITS.htm On the link, which 383 kit (2-piece seal) would you order for general offroading with occasional high rpm? Thanks in advance.