In the past week, all of you have helped me identify (at least I'm closer) the beast that lies within (under the hood).
I have attached some pics that I hope you can help me lasso this animal.
Here is what I have for specs/eng codes-
388242D front of block
'C' code on head
The left exhaust exits the center of the manifold, crosses underneath the oil pan (factory relief it appears) and aligns to the right exhaust to run parallel aft, separating along each side of driveshaft, jumping over rear diff, coming out the rear looking very clean, neat, normal

. The real oddity

is the right side manifold has 'two' outlets, one aft with the pipe, one forward that appears to have a 'plug' installed

.
Take a look at the pics and offer any info/advice/warnings you feel I need.
Thanks again for bringing me up to speed.
Dave
(FRDMFTR)