Shop looks great.
"OOps", I had forgotten you went to TB's and motorcycle injectors.
I now remember the video/throttle body addition.
My excuse; My memory sux..
Final thought; I suspect the Z-1000 Throttle Bodie ID's are larger then the ZG-1000 venturi size?
If so, {only if you still need some type of restriction} you could re-install the secondary throttle plates ands lock them at a position to add some slight restriction? (mebbe 3/4 to 7/8 open?)
Ride safe, Ted