So I'm giving 2 stars because I was able to get it working after a lot of mods. I have a Holley StreetWarrior 600 which they claim will fit, but if you have a Ford that requires additional brackets from Holley in order for this carburetor to mate with your transmission you will need to drill additional holes, add spacers and purchase additional hardware . . There are also no installation instructions and even when I called the manufacturer they had no idea how to install this kit. For the price I should have modified it and got it working instead of paying $95 for an official Holley CNC mount that would work without modification.