I got a kit from Classic Preservation back in 2007 for my Cutlass. Still working great today. Also rebuilt the one in my ’62 Rambler about the same time and its still working great too, including the vacuum section. Made with materials compatible with fuels containing ethanol. All parts fit perfect. If the Jetfire pump is different from the Cutlass he probably has a kit for that too. Here’s the website if you want to contact him.