The flex will more than likely leak. Get a zzp flex to fix that.
this. my speed daddys are great except the flex is a leaky whore. definitely get one from zzp and fix it before you install it. and you'll thank yourself later.
2003 Grand Prix GTP-3.5 setup, sold it, miss it
2002 Grand Prix GT-top swap, GT1 Cam, SD Headers, 90# springs, 42.5 injectors, 3.4 pulley - sold
2012 Chevrolet Cruze LTZ-Summit White, 1.4Turbo