[carmine]

Also check the brass floats for leaks.
They could be fuel logged.
Remove them and shake them in your hand and listen for sloshing fuel inside.
If you feel fuel inside the floats that means you've got a leaker.
Some where in the solder between the two brass halves fuel has gotten in.
This fuel inside the float will throw the weight of the float out of spec and in turn throw your float bowl fuel heights out of spec as well.