1977 Pontiac Can Am question?!!

So this is a post for my dad. He purchased a 77 can am. He replaced the valve cover gaskets. But when he went to put it back together he couldn’t figure out where a few hoses were supposed to go. Looking for advice. So on the passenger side there were several vacuum lines and he cannot figure out where the vacuum lines go. He knows for sure the lines do not go on the reservoir ball. The connections on the ball are correct.