66 Barracuda Hood Buffeting at 70+ mph

I appreciate the suggestions!

All splash guards are in place. I do see on the hood to radiator seal there is a gap towards each side. All clips are in and I remember buying the seal for a 66. I may see how I can secure it down tight in those areas.

Gerald, the 66 has those side bumpers but they are much further back. And it got a new cowl seal about 7 years ago.

I don't get a lot of movement of the hood, but it's more than I like at speed.