1979 new carb now problems
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Joined: Dec 2007
Posts: 7,987
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From: Boise, Idaho
Did you recheck the timing after putting the new carb on?
Also, is it backfiring out of the carb or out of the tailpipe? I believe out the carb means its too lean, and out the tailpipe its too rich.
Also, is it backfiring out of the carb or out of the tailpipe? I believe out the carb means its too lean, and out the tailpipe its too rich.
Posting Guru
Joined: Jan 2005
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is jetting alright for the truck? if it's a new carb, i'd make sure to check it.
also adjust your accelerator pump, if it's adjusted too rich it'll cause a back fire when you floor it. (loosen it, set bar further back, whatever, less torque when you floor it)..
have fun, adjusting the carb for fuel is something that can last the lifetime of a vehicle.. and like others would say, adjust timing to spec before trying to mess with fuel mixture.
also adjust your accelerator pump, if it's adjusted too rich it'll cause a back fire when you floor it. (loosen it, set bar further back, whatever, less torque when you floor it)..
have fun, adjusting the carb for fuel is something that can last the lifetime of a vehicle.. and like others would say, adjust timing to spec before trying to mess with fuel mixture.
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