Blower carb ????????????

Old 05-07-2007, 08:15 AM
  #1  
TonyJJ
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Default Blower carb ????????????

I know that Holley sells a carburetor, made for blower motors. What is the difference between a blower carb. and a standard carb? How would a motor run with a blower and a standard carb?

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Tony
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Old 05-07-2007, 09:49 AM
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margaritaman
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Usually two items will make a blower carb:
1) 1:1 linkage between the primaries and secondaries,
2) the metering block is modified in such a way that the power valve requires that a vacuum line be hooked up from a source below the blower (intake manifold). Normally a carb gets it's vacuum souce from the base plate, but because a carb on a blower is under constant vacuum the power valve would never open. With an external source the power valve is "pushed" open under boost.
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