78 Chevy c10 305 starts but won't idle

Asked by Trigamous Jul 24, 2018 at 09:07 PM about the 1978 Chevrolet C/K 10

Question type: Maintenance & Repair

3 Answers

7,465

Have you tuned the carb and or adjusted the idle screw? Check your base timing i believe it's supposed to be 10 degrees BTDC. Replace your spark plugs unless they're brand new and try running fresh gas through it from a Jerry can by running the hose from the fuel pump directly into the jerry can. If none of that works rebuild the carb, if you're having a hard time matching your carb number to a kit you may have a Canadian model carburetor which is harder to find the kit for. Is it 2 or 4 Harrell and is it a stock Rochester style carb or an aftermarket?

Four barrel, idlebrock carburetor, brand new. I put new plugs in new plug wires, change the fuel filter the gas is new. Runs good just won't idle I did not check the timing that will be my next thing

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C/K 10

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