We got the new blower setup all mocked up on my brothers 74. It's a 6-71 with 3" drive. Don't mind the green blower case, it's getting powdercoated silver. They use green in marine applications, and we got this unit free from one of his customers, it's freshly rebuilt. BDS parts finish out the rest of the system. We just mocked it up to check belt spacing, and snapped a quick pic...