Sounds like you're close. I don't know if you've got the mufflers on yet and, as Gary mentioned, you've got low miles from previous sitting - they tend to continue to run better as you accumulate miles (improvement in compression & vacuum). Hard to suggest jets, but generally the drill is to go bigger until performance suffers and go back a step. White plugs generally indicate a bit lean, but it could be fuel blend too. If you decide to go into carbs again, remember to note and get pics of fuel screws, needle and needle jet
