Where to hook up boost gauge for ROOTS style supercharger

[wifehatesit]

hey i was just thinking, normally, for blow-thru carb or fuel injected centrifugal superchargers (paxton, vortech, etc. etc.) you can just hook your boost gauge to any vacuum line since its all "after" the blower.. but if the carbs sit on top of the blower, can you still attach to the vacuum port at the base of the carb? i would think not since the carb is pulling through the carb, right? wouldn't i have to somehow hook up my boost gauge AFTER the blower?

Thanks.

 

[BK_CAULEY]

anywhere in the base of the super charger. where it bolts to the engine. anywhere that there is positiveair pressure