If they are double pumps then there is no 'boost referancing'; what you might want to do, or be aware of, is that i have best luck making them pig rich at idle. If you have replaceable idle air restrictors then drop them to about a 68 or so, i keep riching the idle circuit until it affects the plugs and lean it from there. Do it like this and you'll be able to go from light to light without engine getting too hot.