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Holley 1 bbl jet question

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Old Apr 16, 2015 | 08:27 AM
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Holley 1 bbl jet question
What is the stock main jet size supposed to be in the 1 bbl Holley found on the 223? the one in My 59's carb is a #67
 
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Old Apr 16, 2015 | 07:19 PM
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The shop manual says:

#65 0- 5k feet elevation
#63 5k-10k
#61 10k-15k
The same for manual and auto transmission.
 
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Old Apr 18, 2015 | 08:46 PM
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Ok thanks! Elevation here where I live is 1,165. I found a #64 jet, so that should be close enough I hope
 
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Old Apr 25, 2015 | 09:42 AM
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Another question:What fuel pressure is best for this carb? I have an electric pump, and just added an adjustable regulator. Wanting to set it to the right pressure
 
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Old Apr 25, 2015 | 10:16 AM
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I don't have the shop manual in front of me, but my 223 with mechanical fuel pump runs around 7psi.
 
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