This 65 383 intake looks odd

Have not seen one like this before. Supposed to be factory.

Not factory. Looks like an old Weiand or Offy.

If it’s aluminum then for sure it’s aftermarket.

Looks like an old Wieand intake that someone grind all the markings off of.

Yep, right along with the MSD BS and fuel line, oops almost forgot, the carb too I smells bull💩😂

Looks to be a Weiand as said above as well as headers. The valve covers and probably the heads are not correct either...

OFFENHAUSER 360

^^^ Yup - Offy 360 is what popped into my head but wasn't 100% sure.
Isn't that photo from a for-sale ad on a '65 Belvedere I ?
IIRC, it was the seller's Dad's car, supposedly mostly original, though obviously hopped up some time back.

That's the one

https://www.hemmings.com/listing/1965-plymouth-belvedere-1-882475

It's a pretty cool car, very straight, though in need of a serious detailing.
The 4.56s & other items indicate some fun has been had.
Gotta wonder why the trunk is dark blue.
$35K seems ambitious to me; I'm thinking mid-high 20s for that car is more in line with the market, isn't it ?