I have a 1977 Chevy step side pick up. I just replaced the 305 engine with a 350.?

  • Thread starter Thread starter Christopher S
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Christopher S

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Now it is very sluggish. It has no power and cannot go uphill at all. I can only drive it on very short trips and not very fast. Whenever I push on the accelerator, the engine revs up but the truck slows down!! Waht could be causing this?
 
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