340 6 pack vacuum line

[pink aar]

I need help with the vacuum line ( carbs) for my 340 6 pack.  The t's in the lines , are they brass or plastic?  Is there a good source for them?  Thanks again

[Chryco Psycho]

Factory were plastic , Brass would be a better choice , any fitting store would have brass , wiper washer tees should work if you want plastic again