I agree with Kurt!
This is one great car however do not use it as a template for what is correct on one of the 5 original FIA cars. (corrected)
There have been various vents on hoods for Cobras however I do not think any are original to the cars.
This truly is a neat blend of 289/427......... I know it would fit in my garage.
For originality I would say reference CSX2345 as it is the only remaining unrestoreed FIA.