[PANAVIA]

I am a big believer in vacuum advance as well, and it should be functioning properly or you are just driving a thirsty tractor.

For the fuel level in the bowls, holley states and I concur that the level should be at the base of the window, now to the transition.

Are you running any sort of base plate on your carb like a spacer ?

If so is the spacer the same design as the intake ?

Now to the transition , of it is stumbling quite a bit, it may be too much fuel as well .

Take a peek and let us know.

Steve