Should I leave it Stock?

It seems like the majority of people are not terribly offended by the modifications. I might have to find another mechanic though after I do them. (Yes I do as much as I can but I work in a parking space of my apartment garage with semi strict rules :(.) He is a great guy and owned one in the 70s but does not want me to touch the thing.
@cudamark Did you spec a symmetrical or non-symmetrical cam profile for the stock heads?
Also I know this is discussed all the time but is 500 cfm going to be over carbureted? I thought the tech of the AVS2 was cool and that is the smallest they size them.

500 is fine could even go bigger just little reason too.