72 Demon Restoration

second question which carburetor am I looking for?
#6138 1972 340 4 spd 800 cfm carb

and which casting numbers do I use to find exhaust manifolds?:
passenger side exhaust manifold will be part# 3418624
drivers side exhaust manifold will be part # 3614367

Here is a brief history of my project: I have been after this car for 5 years, finally got the owner to sell it to me, and got the parts car to go with it, because I needed the interior, and that is where I found the build sheet. I was able to score the original numbers matching engine and know that the transmission is in Alta. Thanks in advance, and here are some pictures of my big project.:thumbup:

so you found the build sheet for your demon in a parts car? is that what you are saying? if so that is pretty lucky to say the least. looks like you need white interior for the demon according to the sheet.
i would put that build sheet into a plastic sleeve a.s.a.p. before it gets torn or ruined.