First stroker build – could use some expert advice

Curious as to what vaccum a combo like this will make, would it be enought to run the Fast Ez Efi ?
Ive got similar build with slightly less cam, hyd roller 239/242 @ 0.50 0.585" lift on a 112, that makes 11-12" hg, im thinking about changing the cam but worried about not enough vaccum as also run EZ efi.

Great question. FAST recommends at least eight inches of vacuum.