High quality reproduction fuel pump adaptor to clear alternator adjuster bolt from original email fuel pump to Carter sealed mechanical fuel pumps on various Slant 6 225, Hemi 6 215, 245, 265 (see photo) & Small Block 273, 318, 340 & 360 engines. 1/2" NPT flare nut screws in to outlet on Carter fuel pumps allowing you to fit 5/16” fuel hose on to the adaptor barb.