For you '65 GT350 sleuths...

[paul]

Pictures of no rib porthole hood on my car #147. Sorry about the poor quality and orientation of the pictures.

[papa scoops]

as to what's behind the hood, it is not smoking, so we can eliminate lucas. phred

[Sfm5s153]

Greetings .I have read this post. And it dawned on me I may have the answer. ..I bought this car and was from the Portland area and vintage raced from the history. I gather.  80s thru 90s.  Ran under the number of 24.  Is this a possible link...I will scan some pic and we can keep. The post interesting

[texas swede]

Many years ago, in the Shelby American/Marque, there was an article
about photography and the object was a 65 GT350 and if I remember correctly
it was car #22. It had a hood painted white on the under side and it had the
extra rib Paul is talking about.
Texas Swede