Hi Guest!
Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
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Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
jvandyke
Luke Skywalker
Offline
Since I stripped down my HS2s anyway, I thought about drilling a hole in each carb spacer, press fitting a metal tube so I hook up vacuum gauges during synching.
Good idea? Hate to introduce more places for potential vacuum leaks and possibly ruin some good spacers, or disrupt air flow through the bore (I doubt that will hurt much) wondering if heat may cause disproportionate expansion of spacer and tube and induce leaks....but the idea of using vacuum gauges that I can hook up anytime with air cleaners still installed sounds good (like all my old motorcycle carbs had)
On a related note, there's three bosses on the intake's balance tube, I assume the two outside ones are to hold a bracket for the heater tube as it goes to the heater core. There's a third untapped one in between, thinking about drilling straight through and dapping that for a fitting should I need manifold vacuum for crank venting or something in the future. (I'm a bit worried about getting enough vacuum to vent the motor when I go SUs, as the line from valve cover to air cleaner won't see as much vacuum as it does now, with Weber, with line running from valve cover straight to intake). Good or bad idea?
Good idea? Hate to introduce more places for potential vacuum leaks and possibly ruin some good spacers, or disrupt air flow through the bore (I doubt that will hurt much) wondering if heat may cause disproportionate expansion of spacer and tube and induce leaks....but the idea of using vacuum gauges that I can hook up anytime with air cleaners still installed sounds good (like all my old motorcycle carbs had)
On a related note, there's three bosses on the intake's balance tube, I assume the two outside ones are to hold a bracket for the heater tube as it goes to the heater core. There's a third untapped one in between, thinking about drilling straight through and dapping that for a fitting should I need manifold vacuum for crank venting or something in the future. (I'm a bit worried about getting enough vacuum to vent the motor when I go SUs, as the line from valve cover to air cleaner won't see as much vacuum as it does now, with Weber, with line running from valve cover straight to intake). Good or bad idea?
