Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Holes in carb body

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bigvette1:
I have a Q-Jet I am working on to restore.  I just tried to post with pics and it blew up .  Here we go again.  Anyway there is a hole all the way through the casting at the bottom of the power piston well.  I really don't think this is normal - but want confirmation from the forum.  Thx.
Jim

davis95:
This is perfectly normal. The hole going all the way through is the vacuum-
supply hole that supplies the vacuum that pulls down the power piston.

bigvette1:
Thx, almost plugged the bugger up.

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