What is the intake valve size. Using 2.05" in the 128 formula indicates a 102 LSA. Pretty tight so I would order the cam ground on a 108° LSA.
For the intake manifold it depends on what you expect for street manners. The Performer AirGap will provide a little better off idle torque, but with the 3.91 gearing the Victor should work well as the revs will pick up quickly.
They have a 2.08 intake. When I did the equation, it said I should use a 106. From the input, sounds like that is still too tight for my application so I will probably do with something a little wider