I just bought a new intake and rebuilt carb to replace the old 2bbl that came with my 1972 GTO. The motor is a 1971 400 and was rated for 265 hp. The old carb was gunked up and needed rebuilding so I opted to go ahead and get a 4bbl and new intake. The question I have is around the vacuum connections. On the old 2bbl intake there are no vacuum connections into the intake - on the new one there are two. Can someone tell me which of these two are for the connection to the PCV valve and what the other one is for?
380.1 KB Views: 924
729.9 KB Views: 175