Your door plate says the car has a 383. (Letter G)
The fender tag data plate can be decoded by a number of people here so I won't try, as I'll likely get it wrong.
Regarding the paint - your car has had some work done on the engine bay, as it technically should be body colour all the way - no blackout used except on the front of the radiator support behind the grille. Your front inner fenders and firewall are black, which is not seen on 66 C bodies. Always body colour.
Your engine is the correct for Canada red, and you already have factory dual exhaust, so just fix that up if required and enjoy it.
I'd be interested to see if it was truly a woodgrain delete car, because all the body trim is there that would have outlined it originally, so it's odd (but not unusual for Mopar) to have had that trim installed but no woodgrain. The fender tag will reveal some of that. Look under the back seat to see if there's a build sheet stuck in there. That will also be a great find with lots of info.
Keep us posted!