You fellows should take a look at http://www.chevyasylum.com. This site is operated by a fellow Bolter. (I have never had the pleasure of meeting Ray but he sure seems to be both knowledgeable and capable.) He details the changes he made to his 64 C10 with 292. Changes include intake, carb and headers to name a few. I think that you will both enjoy and benefit from Ray's web site.
And WELCOME to the Stovebolt. Everyone enjoys and benefits here too!