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Old 04-11-2014, 06:42 AM
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steve25 steve25 is offline
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Join Date: May 2008
Location: Westchester NY
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Default Q jet info for all, power piston spring rating

Last night after nearly giving up on the web search for this info,( which is info I use to have stached away somewhere) I though I would post IT up here for folks.
This is the Rocchester part number, but far more important, the HG vacuum rating at which they start to let the Carbs power system come off the idle circuit.

7037734 14.4"

7032758 11.5"

7037305 10.6"

7036019 8.4"

7029922 7.3"

7037851 6.3"

I have somewhere a list of Carb numbers that tells which Carbs came fitted with some of these common numbers, if I turn that up I will post it also.

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