alright i got my barb for the side hole that is going to go to vaccum off the compressor wheel that was 1/8 thread (fit perfect) But the top center hole that i need to use for the mbc is the diameter of a 1/8 but a much more corse thread, the one closest is also a 1/8 thread. Just seems wierd the middle one is a more corse thread....anyone know where to get this barb?

 

the one in the middle is the adjuster. there should be an allen adjuster and a lock nut there. it should use the hole off to the side of the center.