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Author Topic: Quesiton on Drilling Idle Tubes  (Read 1525 times)

Offline WideTrack

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Quesiton on Drilling Idle Tubes
« on: May 12, 2020, 02:42:26 PM »
Got new Idle Tubes from Cliff.  When enlarging them to spec, should I drill through what looks like a restriction at the top of the tube as well as the bottom before I install them or just one or the other?  I assume I should do both, otherwise what's the point? 

 Planning on opening them up to .038.  Idle down channel is .060
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Offline Kenth

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Re: Quesiton on Drilling Idle Tubes
« Reply #1 on: May 13, 2020, 12:54:33 AM »
The restriction to be enlarged is at bottom end of tube.
I have never seen original idle tubes for Quadrajet with restrictions at upper end.
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Offline WideTrack

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Re: Quesiton on Drilling Idle Tubes
« Reply #2 on: May 13, 2020, 07:53:04 PM »
Thanks Ken, I'll post a pic. 
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