matching my bbk 1 3/4" long tubes to a 3" mac prochamber???

[STREETFIGHTER50]

i have bbk 1 3/4" long tubes that have dr.das 3" ball flanges welded to them & would like to fit a 3" mac prochamber on them. i know i have to shorten 1 side, but would the flanges be the same fit?

 

[PJC Racing]

MAC makes a ProChamber specific for the long tubes.

 

[STREETFIGHTER50]

Not for BBK specific. Correct me if I'm wrong, something may be new?