i have a 130hp. 1973 Chrysler outboard what are the tools i need to do a float adj. ,and where do i measure from when adj. the floats .i know the tab adj. when you push it in it comes up closer to the carb i would like to do this right the first time because of the bolts that hold the fuel bowls in are made of soft brass and mare easy .and what is the measurement for the float adj. on these dual carbs.thank you IKE1952