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Roy, import/domestic specialest
Category: Chevy
Satisfied Customers: 4454
Experience:  ASE master tech for 40 years
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Have a 63Covair dual carbs 140, only issue orinally was it

Customer Question

Have a 63Covair dual carbs 140, only issue orinally was it was hard to start....not sure how old plugs, wires, points etc were all werer replaced and carstarted ok...but, it would buck. Checking timing etc, question came up as to whether distrubutor was origional....a worn one might not keep timing in that was replaced. Checked vacuum ok, carbs were rebuilt but,,,,runs fine except it stll bucks between 30-50, rarely unnder load but pretty much when just cruising along and know it should not be doing it (never did it before) and lost as to what the cause is. Screens in carb clean, use 91 gas.....any ideas as to what we are missing
Submitted: 3 months ago.
Category: Chevy
Expert:  Roy replied 3 months ago.

good afternoon my name is ***** ***** I will assist

did you check to see if the choke plates are both wide open when hot???


Expert:  Roy replied 3 months ago.

please dont forget to rate me as it is the only way I get paid for my efforts