2 and 5 use the same end sections, I labeled 2 wrong, saw that after I put the pics up. The ends on 4 will only work with 4, same for the log and 3. Progression time wise, 1, 4,
5, 2, 3.
There were some funky manifolds made for use in fugly trucks like Ford L series, Volvo W series, Mack...