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Discussion Starter #1
hey guys,
the 460 is acting a little weird at cruising speeds and I've noticed a loss in full throttle power. It stumbles a little every few minutes while driving at a steady speed. It's a small little stutter, hard to notice.
It started after blowing off the cheap oil filter relocation adapter, I shut it down as soon as the oil pressure dropped - but didn't take it out of drive and i'm pretty sure it backfired through the carb while coasting to a stop.
Does it sound like a blown power valve? (holley 750 by the way) I've heard those can go in a backfire. Anyway, what's your opinion?
thanks!
Matt Williams
baby blue 67 Mustang coupe 460
 

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It wouldn't hurt to replace the power valves since it only should take a half hour or less.
 
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