Why not just cap off/remove all lines that don't directly effect running
![I Dunno... :dunno:](https://board.marlincrawler.com/Smileys/marlin/dunno.gif)
Mine is an 80 and all I have hooked up is vaccuum advance and brake booster, though I am running a weber. I did have everything hooked up at one time but decided to simlify things a little.