It looks to me like a later 360 (mid to late 80's) intake because of the small thermostat housing and the heater hose that comes out in the middle of the water crossover. There should be a casting number on the back of the intake. From the view you show that looks like a casting date to the left of the thermostat housing but I can't read it.
I got a good one for ya, the previous owner put a pair of heads on it with air tube holes and put a drivers side exhaust manifold without the airtubes, and left the tube holes unsealed.
Beyond annoying, I have it in my garage, tearing out the interior do do some floor pan fixes, so I won't be driving it until I change intake, heads and cam.
It's really amazing the stuff you have to fix when you first get a car, most of it are previous owners "fixes"