A: 2100 was internal. 2150 external (unless you have a radical cam, a 2150 from a 360 would overfuel!) From: Kelly Hardie <ramblinguy.kelly@xxxxxxxxx> Subject: Re: [Amc-list] motorcraft install To: "AMC/Rambler owners, drivers and fans." <amc-list@xxxxxxxxxxxx> Message-ID: <461673B7.7040608@xxxxxxxxx> Content-Type: text/plain; charset=ISO-8859-1; format=flowed There is an internal passage in the carburetor that runs vacuum to the chamber below the valve. If you take the cover under there off you should be able to see it next to the valve... Kelly _________________________________________________________________ Get a FREE Web site, company branded e-mail and more from Microsoft Office Live! http://clk.atdmt.com/MRT/go/mcrssaub0050001411mrt/direct/01/ _______________________________________________ Amc-list mailing list Amc-list@xxxxxxxxxxxx http://www.amc-list.com/mailman/listinfo/amc-list