Edelbrock LD340 Intake Manifold Usable Max RPM?

It’s hard to judge really because that combo wants 260-270 @ .050 and a big single plane. And I’d want more lift, like .630-.650, but then throw the LD340 on there and I’d want to see 230 @ .050 and .500 lift and 9:1 comp. So I’m gonna tell you to not be set in stone on any of them. Have a cam ground and if it doesn’t do what you want tell the grinder and get a different one ground. And if you’re not rules limited to a SFT, I’d run a hard roller in that thing without thinking twice about it.
I'm completely open to the cam profile and building the other components around that, so I appreciate the input. Unfortunately, we're restricted to flat tappets.