Here we go again...on the back of my intake manifold(Holley Contender) I have a Vacumm hookup "tree"...for lack of a better term. The only thing hooked to it right now is my tranny hose...the rest are plugged...should anything else be hooked up to it. Im running an Edlebrock 600 carb...it has 2 places for vacuum hoses...one goes to the distributor the other is plugged. Should a hose be hooked up on the plugged one and run back to the tree? Thx, Rick