Stop in for a cup of coffee

Good Morning...snow here not much.
Matt in post of the Hot Rod pic the drivers firewall clip looks just like what I got.
Other strange things on it. Must not be a 383 heater hose into the block is different than mine.
Also looks like they have an after market temp sending unit on the block.
Bolted or welded...yep closer look its welded.
Its a 273.
It looks like I installed my harness with the Y on the wrong side of the retainer I've marked W1

upload_2019-1-12_8-16-44.png