1983 VF750F Carb 'Ram Tube' Question

I have my bike apart to do some work and noticed something with the rubber 'ram tubes' clamped between the carbs and the carb base plate. They have a tiny hole (about 0.030') molded into them located just above where they meet the carb base plate. Three of the tubes are rotated in a specific direction relative to the carbs, but the other is rotated differently. Does anyone know if the hole orientation relative to the carbs matters? Do they provide some type of small air 'signal', or are they just part of the mold design (used with a pin to help pull them from the mold, etc.) and don't matter? I have checked both my Clymer and Honda service manuals and neither mentions the holes.

 

Move that one so it lines up like the others.

 

I rotated the carb funnel to match the others - not sure if the other three were in the correct position (or that it matters). On another note - I finally fixed the problem that drove me to tear it down in the first place. I had what seemed like a lean condition that got worse as the RPMs rose. It would rev out fine with no load, but not when riding it. The power would start to flatten around 6-7k and then it would start to miss at around 8k. It turned out to be something really simple. When I had 'rescued' the bike after it sat unridden for years, I replaced all of the fuel lines and misrouted the one connecting to the tank. The line was getting pinched by the seat pan and more so when I sat on it. I re-routed the line last night and it now says 'let's rock' when it hits 7-8k and takes off. Once again - we are usually our own worst enemy - bikes or otherwise.