Here's a link to how I did mine long ago. IMHO the Captainfab kit is the best design on the market. If it had existed at the time I did mine I would have saved myself a lot of grief and used his version.

http://sixty7ss.proboards.com/index.cgi?board=engine&action=display&thread=666


1960 GMC 1/2-Ton Pickup Truck
In the Gallery
Updates in the DITY Gallery
Now cruising in the Passing Lane