Petcock Help!!!

OK..I have an '82 kz1100 A2 Shaft bike.It either had a Pingle or JC Whitney Petcock on it,but it wasn't good.So I want to go back to stock,and the question is:What is the difference between the various part numbers for these units?I picked up a used unit for a 1000,but I don't like it.I have an extra new one for my 750H.It looks like the only difference is the orientation of the vac line hookup and fuel line outlet.The body looks like it will bolt up to the tank.Is there a flow rate difference?I'm getting down to the final reassembly on this and want to get it right the first time.

Flow rate should be fine.

Would mostly consider proper fitment to tank, and when fitted, clearance from other parts and access to vac and fuel nipples. Including non-interference with continued ability to remove and replace fuel tank.

Good Fortune!

There are tons of different numbers. Some have the fuel pickup slightly different lengths for different tanks, some have the on/pri/res positions swapped for some unknown reasons, some have the vacuum nipple pointing different, some have slightly larger fuel line outlet. They can all be swapped around as long as the bolt pattern is the same. The vacuum nipple can easily be rotated to any position by unscrewing the 4 philips screws, turn the plate and reattach.