you talking about CARB SYNCH VACUMN :?: it doesnt matter what the readings are as long as they are the same (with in 1" of each other, the closer the better though) :wink:wayne74447 said:whats vacuum usually gonna be on these? i am getting maybe 3 inches
make sure your vent lines are OPEN/NOT PINCHED :wink:wayne74447 said:well she idles beautifully now. 900 to 1000 rpm. ran it with the boots off and the number 4 carb was dripping fuel, is it common for these to do this?