The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

jfnar · 11-13-2019, 09:19 AM

Before spending any money I’d first verify the speedometer against a gps. Then check your tach to make sure it’s not set for 6 cylinders. If the tach is set for six your 3100 rpms are actually 2325.

11-13-2019, 09:19 AM	#17
jfnar Registered User Join Date: Jul 2009 Location: Jonesboro, AR Posts: 410	Re: Rpm question Before spending any money I’d first verify the speedometer against a gps. Then check your tach to make sure it’s not set for 6 cylinders. If the tach is set for six your 3100 rpms are actually 2325.