I just got my new motor back from the engine shop. It is a 350 block turned into a 383 stroker. It has Dart Platinum Iron Eagle heads with the larger runners and valves.

I have a Holley Stealth Ram manifold and plenum, along with the better fuel rails and 42lb Ford Racing injectors all ready to go. But when I laid the manifold on top of the engine last night, there is a hairline of port showing just above the intake manifold. Like the manifold is not quite big enough.

One of the guys helping said maybe once I start bolting it in, it may "snug up," but I don't know about that?

Does anybody know if this manifold is too small for these heads? Any help is appreciated!