85 silverado 454

have a new air filter fuel pump fuel filter and when the engine gets
warm and if I am going up hill the engine has little or no power even
with the pedal to the floor..it doesnr rev high just like as if no
gas. This doesnt happen in the winter??

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Could be a plugged catalytic converter. I encountered that same symptom
with a 1981 Suburban 1/2 ton 454.

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2 26th February 21:20 klutz External User Posts: 1	85 silverado 454 Could be a plugged catalytic converter. I encountered that same symptom with a 1981 Suburban 1/2 ton 454.