1971 Ford F350 sputters and pops while decelerating and also loud while accelerating. what could be the cause
1971 Ford F350 custom with the 390 engine. just had the points and timing adjusted and
tuned. happened after a twenty mile freeway drive. I noticed the popping and sputtering
as I was exiting the freeway. Also, she seems to be operating fine just loud.
How old is muffler? It doesn't have a cat, so no worries there but sounds like a plain old worn out muffler. I have '76 with a 390 and have gone through maybe, geez I don't know maybe 8 mufflers and that is exactly what happens
Thinking back more like a dozen
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