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Old 04-05-2011, 05:25 PM   #1
sons65project
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timing headaches

65 305 v6. new plugs, wires, cap, rotor, points, condenser, vacuum advance, coil, running a holley 550 2brl. dwell set to 30, timing set to first mark. back fires through carb on acceleration. pulling my hair out, anyone have any ideas?
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Old 04-05-2011, 07:43 PM   #2
awbrown
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Re: timing headaches

if the timing is set right , then I would suggest it is the accelerator pump in the carb ..... It should start to shoot fuel the instant you start moving the throttle........
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Old 04-05-2011, 07:47 PM   #3
Corts60
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Re: timing headaches

Popping through the carb is a lean condition. I would set the timing to around 6 degrees. Factory is 4 degrees. Also check that you don't have any vacuum leaks.
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