ezstriper

your best bet is to call the holley/weiand tech line, ask for Tom, he's the blower guy, he can email you the mods for boost referencing the carb, basicly you are getting a vacume source below the blower to feed the power valve so it will work correcly, if you don't the power valve won't open under boost conditions and it will run very lean...not good..ask him about the 1 vs 2 carbs see what his thought are...Rob