8 3/4 vent location

Okay, I received my inline tube rear break lines. The lines are a perfect match for the 7 1/4 I removed from the car. But the "T" or vent hole location is not in the same spot as the 7 1/4. The 8 3/4 is further inboard by about 2 inches so the left line is too short and the right line is too long.

Are the vents all supposed to be in the same location, or was the guy that made mine drunk that day?

I don't know if this was an original "A" body rear end or if it was cut at some earlier time.

were there different vent hole locations for the A,B,E bodies?