engine misses when warmed up - Ford Muscle Forums : Ford Muscle Cars Tech Forum
 
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post #1 of 5 (permalink) Old 04-22-2002, 08:49 PM Thread Starter
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engine misses when warmed up

Friend has 71 windsor bottom end with 289 heads for dirt track racing in street stock class. When motor warms, engine starts to miss. Checked tank, lines, changed brian box, wires, carb, fuel pump has pressure. help?
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post #2 of 5 (permalink) Old 04-23-2002, 07:28 PM
 
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engine misses when warmed up

Is your water/antifreeze level staying right up?
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post #3 of 5 (permalink) Old 04-23-2002, 08:49 PM
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engine misses when warmed up

I think I might try a new distributor cap or maybe a new rotor.
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post #4 of 5 (permalink) Old 04-23-2002, 09:05 PM
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engine misses when warmed up

Check the plugs for signs of antifreeze contamination.
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post #5 of 5 (permalink) Old 04-23-2002, 11:46 PM
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engine misses when warmed up

Does he have the rocker arms set too tight? Once the engine warms up the valves could be staying open. Does the engine pop out the intake or exhaust? Just a thought. Good luck.
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