G,
I was able to work on my ride this afternoon and got some more details for ya - if you don't mind.

Under the valve covers..
right side = 1A10
left side = 1C3

Recall the heads are both say C1AE-6090-A on the outside.

Now, the carb is an Autolite and it's tag reads..
C70F AA 6Gc

The intake is factory, and on the front reads..
5751087 : EB8
(there's also an L, an H and a 3 in the same area)

Now, the engine - I removed the generator and recorded..
C1AE 8015C (it could also read C7AE 6015C - hard to tell)
1C1:4
44

I have pictures of all these if you're interested in seeing them.
What story are these #'s telling?

Chris