Check the listing for details. BASE REBUILD KIT FOR HOLLEY 4010 VACUUM CARBURETOR BLUE 84010 84011 SEE LIST. Condition: New. Listed at 59.95 USD. Important: Read the listing before you purchase to make sure you get the correct kit. We assemble these kits in house from Walker parts made in the U.S.A. and they are not generic kits like many being sold. In both the Holley 4010 square flange and 4011 spread bores you have double pumper style carburetors with pumps on both ends and then you have vacuum secondary models that are single pump with a vacuum diaphragm. Look closely at the pictures in the listings as we take actual pictures of the kit contents.We also offer several levels of kits with less parts as well as 3 different top gasket color choices. This kit is a base kit for the Holley 4010 square flange vacuum secondary carburetor with the vacuum pod on the side and has the blue non stick top bowl gasket as pictured. This kit does not come with a secondary diaphragm or power valves for those that dont need them. It does comes with a 5/16 thick coated base gasket and .110 v iton tipped needle .[ we do have other listings for kits with power valves and standard or red top gaskets]Model numbers this kit fits are:0-54083 0-54083-1 600 cfm.0-84010 0-84010-1 0-84010-2 0-84010-3 600 cfm.0-84011 0-84011-1 0-84011-2 0-84011-3 750 cfm. 0-84018 0-84018-1 0-84018-2 0-84018-3 750 cfm.0-84020 0-84020-1 0-84020-2 0-84020-3 600 cfm.0-84023 0-84023-1 0-84023-2 0-84023-3 600 cfm.0-84028 750 cfm.0-84035 0-84035-1 0-84035-2 0-84035-3 600 cfm.0-84044 0-84044-1 750 cfm.0-84046 0-84046-1 600 cfm.0-84047 0-84047-1 750 cfm. Kit will be shipped in a box by USPS First Class so the top gasket is not damaged. Be sure and check our store for more carburetor and fuel system kits and parts. BG,Barry Grant,Demon,Dominator, King Demon and Holley are all registered trademarks of HPI to which we have no affiliation nor are these parts manufactured by them. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov As of July 9th USPS has combined all non priority shipping including First Class into 1 service called Ground Advantage. Any listings that state we ship First Class will now be shipping Ground Advantage. Ebay is supposed to be updating this in the shipping section of the listing however to avoid any confusion if our description states First Class there is no more First Class available. They are telling us standard delivery times will stay between 3-5 to most locations as before however we have no control over these changes. Ebay will also be updating expected delivery dates if there are any changes there.