I just bought a 76 auto from my little brother and it is decent shape, but wont pass emissions here in AZ. (12 times the limit!) It has been converted with a weber carb, and I was instructed to re-jet it. I did but while under the hood I got to looking at the emission system and noticed that 2 of the vacuum lines coming from under the carb are plugged (very heavy vacuum pressure), while a third goes to the distributor. It has no vacuum and when removed doesnt effect the idle. There is one vacuum line on the intake manifold that is "jumped" to another fitting in the manifold and when removed motor dies. Also, I just had a new air pump installed to see if that would help but to no avial. Any Help?