That's only one of the things that led to a mere 215hp from the factory. Just about everything on the stock 5.0 engine is restrictive and if you think 215hp was bad, the same engine only made 165hp back in the mid-70's.
Remember guys, now days the intake is a cold air intake and that may be the question here. If that's the case it is aftermarket and it's a fender kit by either MAC or BBK. If you're really asking about the upper intake manifold which sits on top of the motor then like everyone else that would be a stocker with the plaque removed.