need some smog information

[chewychevy67]

I was just curious if on a 327 in 67 would the 4bbl carb be different on an engine with and without smog? I am doing a restoration and have found the correct 1967 smog equipment but am unsure if my carb will work with it properly. also is the distributer weighted differently with smog ? Are there differences in the mixture control valves and smog pumps from motor to motor and if so what would be correct for a 67 327 275hp? any info is appreciated. Rod.