The 1947 - Present Chevrolet & GMC Truck Message Board Network

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- - {dle (https://67-72chevytrucks.com/vboard/showthread.php?t=750173)

Larry64

11-09-2017 07:24 PM

{dle

1964 inline 6 230 with 1 barrel carb. . At startup when warmed up it idles at 600 rpm, after driving around a while the rpm at idle goes up to 1,000. Any ideas as to why? It is a points ignition. Thanks

franken

11-09-2017 10:55 PM

Re: {dle

Have a look at the choke.

Captainfab

11-10-2017 12:25 AM

Re: {dle

Possibly a sticking mechanical advance. My '68 C10 with a 250 does that occasionally.

Larry64

11-10-2017 06:54 PM

Re: Idle

Thanks. Will look into both.

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