i have a 1996 gmc k3500 454.
just put new plugs and wires on it the same way it came off. at ilde it runs fine
up to 2,000 rpm after that it chugs. i tuned it up because one spark plug wire
was broke. what could be wrong with it?
just put new plugs and wires on it the same way it came off. at ilde it runs fine
up to 2,000 rpm after that it chugs. i tuned it up because one spark plug wire
was broke. what could be wrong with it?
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