Edelbrock LD340 Intake Manifold Usable Max RPM?

No what you want is a bunch of guys you don’t know to tell you that what you want to do is right.

I’m man enough to tell you that you are shitting yourself shitty if you think than manifold at 7k rpm isn’t at least 30 hp down to a good single plane.

Don’t talk about “bottom end” loss or other nonsense.

That manifold has a place but it ain’t on an engine that is CAPABLE of 7k. That thing should be on the shelf.

And I’m not talking out of my ***. I’m telling the real world straight truth.

I’d shelve it or sell it but it never was or ever will be a good manifold for that kind of rpm.

That’s the fact. And the hp it’s down on the dyno will only look worse on the track because of the nature and limits of water brake dyno testing.
But he's only allowed to run that manifold for his class or stock.