Hey boss, I remember reading on one of you responses to a guy who was having problems with his cars you got him through his problems as usual, but I remember you telling him, if he Isolates the vacum on each carb when he goes to sync the carbs he will get a smother Idle. I was dwon rerouting the cables for the heils when I noticed those 2 small black vacum lines I believe looped from carb 1 to 2 and carb 3 to 4 they are the little small vac tubes. now I have a smooth as heck idle when I syncd mine, But was curious when I got them back from you those were still intack. I caped off the 1.2 4 carb with a black vac cap at the front of the carbs, Should I also remove those little small ones on the rear part of the carb and cap them off also. Thx in advance Steve