I see rumbles on this thread I'll leave it to him this is not my area of experience, I would think you would want to open up your intake port to a 340 gasket match size if it was me.
I agree and the Edelbrock LD4B is one of those “Other” intakes from Edelbrock that can be listed. I really like that one a lot. Weiand did a copy of it. (Action Plus)
$400 is ridiculous prices IMO. If you yourself NEED to have it, fine, you can do it a lot cheaper with a;
Factory iron
Edelbrock Performer or other Edelbrock
Weiand Action Plus
These intakes sell a lot cheaper and will perform just the same at tour build level.