My center carb has a port below the throttle blade I can use, but the original PCV was connected to a port under the rear carb in the intake.

I'll have to look at the schematic to see if my memory is correct.

I would imagine the central port might be the one to use when calibrating
the new PCV.

I'll try both to see if there's a difference when I get ours.

Joe

Well, I was wrong again!! PCV tube goes to center carb!
Rear fitting in intake must be for power brakes??