1978 thunder 700 70hp question

[xkdxdavis10]

Hello I have this motor. its a 78 thunder 700 70hp. The motor has what looks like vacuum lines should go where these fittings are but I'm not sure . there is a tota l of four fittings with nothing connected. one is on back of carbs and another goes to a black box on side of motor I will get pics ASAP but does anyone get what I'm talking about

 

[xkdxdavis10]

Re: 1978 thunder 700 70hp question

Here are the only pics I have