This is a rebuild kit for the 4150 style vacuum secondary BG Barry Grant and Demon 575, 650,750,825 and 850  including the Speed Demon and Mighty Demon .This kit does not come with a power valve but does have a new secondary vacuum diaphragm.  Both the metering block and fuel bowl gaskets are the new black coated reusable ones. An extra set of paper needle and seat gaskets are included for float adjustments . This kit also includes the correct main body to base plate gasket for the Demon 575, 650 and 750 as it is different than the one for the same size Holleys and unlike other kits we have looked at it also includes the orings for both the screw in and clip style sight glasses. We now are also including the mixture screw orings in v iton and a loose pair of v iton needle and seat orings.

Please note: Be careful of other vendors generically classifying their rebuild kits as being for the 575,650 and 750 Demon as many of them do not have the correct main body to base gasket or inlet fitting gaskets.

 Please note that the metering block and bowl gaskets are a true coated gasket that start out as a standard paper one and then gets a protective coating on it to be compatible with modern fuels unlike the cheaper imported gaskets being sold claiming to be coated. The last picture shows the difference between our coated gasket on the left and the imported "coated" gasket on the right which is not and just a thick paper gasket.

Made in the U.S.A.

Kits that have been opened cannot be returned for credit as we take great lengths to list all of the applicable model numbers in the listing to ensure you get the correct kit to begin with.  Returns must be in the original shipping box and received by us undamaged to qualify for a refund.