Low deck or RB motor? That MP intake that you listed won't fit either so you have the wrong number. MP does have one intake that fits the RB with original max wedge heads and that is the 337. They don't have an intake that fits the low deck with max wedge heads.

The Indy intakes will fit but you'll have a mess on your hands trying to seal up the valley when using original max wedge heads.

The 337 intake is the only thing that fits and works really well in that application. It makes pretty good power from what I've seen on the dyno. My 505 makes right at 800 hp with the 337 intake and a 4500 carb on an adapter.