Vacuum port size

[73hcode]

so I have a 360 with an air gap intake on it and I tried to swap the vacuum port from a factory intake and it was to large has anyone else run into this problem?

 

[Marcohotrod]

common problem, if the factory fitting is only needed for 1 hose, take the intake and fitting to a good parts store and get 1 with the smaller thread size. can also get an adapter and use the stock fitting.