Your picture of the right side show the vacuum port for the rear carb booster is open. All three carbs need to have the vacuum ports connected through a T fitting. It looks like you have the center and front carb connected with a hose and nothing to the rear carb. They all three need to be connected together.
they are all connected correctly. What you see is a vacuum hose that goes into the choke pull off disengaged so the flap stays closed.. I put a screw in it to stop it from air leak.
my bad.. I see what you mean but still no difference.
