Hello all, new here, new to Y block, and to classic cars.  I made an intro past a few days ago.  I have read and researched and come looking for your expert advice.  I have a 56 Country Sedan that as I was told had a 312 (with a Novi AC unit) installed in the car in the 70's.  The car is a one owner and so far everything that I was told has checked out.  The motor was a oily greasy mess so today I sprayed a little degreaser on it.  I would like to do some maintenance to it like new spark plugs and a oil change as I have no idea when any of this was done.  So here I am looking for your expert advice.  

1.  What motor do I have, the block code is EDB 6015 E, located above oil filter on drivers side
2.  The exhaust manifolds are ECH 9431A
3.  What maintenance would you do if this was your car.  The car runs good, just want to be proactive at this point to keep it running before a rebuild.
4.  Where can I find more info on the carb and the choke setup.

Thanks for any and all replies!





56 Country Sedan
Carlisle, PA