I refer to the chart Edlebrock supplies and change whatever is needed to get one or two steps rich or lean wether it is in the power or cruise direction. Just change it and see, you will figure out which way to go easy it seems with he tool you have to tune it.
I think one step is only as rod change, more than that requires removal of the top to change jets.

I bet $$ that your acc pump is not working right because of the seal, I found a couple that didn't work resulting in bogs when I stand on it. The orange ones work the best for me.