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Old 08-19-2020, 07:56 PM   #1
mcgarrett
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Join Date: Dec 2013
Location: Palmer, Texas
Posts: 65
Default '40 Ford carb fine tuning help needed

Stock '40 engine with about 5,000 miles since rebuild. Running correct Ford/Holley 91-99 carb. Can't seem to find the sweet spot. Starts quickly and takes throttle fine, but has slight hesitation off idle and seems to run slightly better when I add some choke even after it has warmed up. Could it be that it needs the float raised to increase float bowl volume to increase flow through the main jets? Just installed a new carb kit with new accelerator pump plunger, gaskets, etc. and all passages were blown out with spray carb cleaner to make sure they were open. Don't know what to do about it running better when I apply some choke, so help is certainly appreciated.
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