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What is causing my 1987 Ford 460 engine to backfire through carb?
Wiki User
∙ 11y ago
ignition wires ,cap ,rotor ,and or plugs. Timing can cause this too but unless its been altered it is not likely your problem. Incorrect firing order can also cause this but again unless the wires have been switched its not likely your problem. Focus on plugs and wires. If plugs are badly fouled - Replace . Be sure to identify the reason for fouling - Choke, wires, air filter ect
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It also possible to have a bent pushrod, causing one of the exhaust valves to not open.
Wiki User
∙ 11y ago
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