Quote Originally Posted by Yellow72 View Post
In my humble opinion, for the street this works for me...
Put a vacuum gauge between the blower and carb and make sure the vacuum is not high enough to keep the power valves shut at cruise. (usually only the case under boost)

If it is you need to get the signal for the power valve from below the rotors.
well you just get a faster response from boost referencing and not reading at the carb base is you not going to see the real vac drop with the blower/vac pump .. but in the reall world for the street abit slower response.. lag... is not going to hurt.as your going to blow the tires off any way you go. as the blower is a big vac pump at idle mine thinks at the base of carbs thinks there on a mild street engine. at intake it making 2.5 inchs of vac race engine. how fast you spinning the blower at idle and how well its seals up would come in to play i haded good luck with the afbs on blowers you can play with power rods and set up springs trying them on a run then pull over and swap them out very fast with out getting in the carbs