Here's an intake I got from my scrapyard buddy, Who ever did the work on it did an ok job. What is the tube for inside the center carb? It's the only one that has it.
i'm gonna say cadillac,just because i don't see a provision for a thermostat.could be studebaker too,for that matter.
the outside carbs don't have primary circuits would be my first guess Why Y block?? you can see that the ports are side by side not stacked!
The tube in the center carb is a bowl vent, alot of times it comes in handy to shoot a little carb cleaner into it to prime on that's been sitting a while.
Certainly not a Ford Y Block, the heat port is not in line on them. Looks too small to be a Lincoln version. Is there a part # anywhere?