RE: [Chevelle-list] Holley 4150 rejetting

[Bill Vander Werf]

Title: Holley 4150 rejetting

Try this link:       Holley Tech Service   Bill Vander Werf         -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roemer, Timothy Sent: Friday, March 25, 2005 9:33 AM To: Chevelle-list@chevelles.net Subject: [Chevelle-list] Holley 4150 rejetting Importance: High   I just bought a 69 Chevelle (L4-400 hp) from someone who lives on the west coast.  The Holley street avenger carburetor (770 CFM) manual recommends a decrease in the primary and secondary jet size of one jet per every 2000 feet above sea level. The plugs are a dark black color so I am running a very rich mixture. I live at about 7000 feet.  Does anyone know what the right jet size should be for this setup?  Are the jets easy to change or should I find someone who is an expert in carburetors?? Any help would be appreciated. tim