does the #3 cylinder vac line go to the valve on front of the air box? or where does it go? on that same valve, a short hose comes out the top and goes to the front of the air box. another hose is about 7 inches long and connects to a plastic "t" pipe that connects 2 short hoses to the top of 2 carbs. now, on that valve, where does the other elbow coming out connect to? its two elbows on the left side of that valve but im not sure what connects to the elbow nearest to the valve cover.