Help with VIN...

Not possible, the plant digit should be a B for Hamtrack, MI.

If it actually says F for Newark, DE, it is most likely a typo on the tag.
My thoughts exactly . "F" is just to the upper-left of "B" on the keyboard
( typewriter , or even telex keyboard ) .

It'd be even better if this 'Cuda was actually a Barracuda with a factory-installed 340 !
I've seen one 1974 Barracuda with a factory 360 : BH23L4B ! Unmodified ; flat hood , turn-down exhaust
( Ca model ) , and dark green metallic with white interior .