Here's a link to one of the 250's we just built. 2 more are in the works as well as TWO 292's.
This one has 'chamber' work, bigger valves, Chevy 307 Flat Top Pistons, the Intake Bosses removed (but not Lump Ported)running an Edelbrock 4 bbl 500 cfm manuel choke on an Offy Intake and Hedman dual long headers.
http://www.facebook.com/video/video.php?v=387321371284995
Enjoy!
PS - I NEEEEEEEEEED to know where to find 3 grove pulleys for the 250 if any one knows.

If at first you don't succeed . . . er . . . then skydiving may NOT be for you!