1965 Valiant 200 convertible (minor project)

Back to the engine bay....
If you look at these pics, you can see that the air cleaner has been modified. I don't know why. Maybe that's not the stock carb? If you guys can educate me on what to look for, I'll try to I.D. the carb. It has a manual choke, but doesn't seem to like it. It can take a couple of tries to catch when stone cold, but runs good right away. Starts instantly once warm.
I also noticed that the CCV (or is it PCV?) valve at the front of the valve cover is plugged and there's a nipple on the carb where it would have attached. The rear breather looks to be vented to the atmosphere. I don't mind fixing all this stuff but, again, it runs pretty darn good right now and I'm hesitant to start messing with it. If it ain't broke...
The coolant is new, there are some oil change dates on the filter, the valve cover gasket looks to be new, plug wires are new, etc.
Feel free to point out anything you see in the pics.
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