In need of an education..340 vs 360.

Hey guys, I've been a 360 man since I had my 1st one built back in high school. I have spent the last 20 plus years absorbing everything I can about hot rodding 360's. I had settled on a .30 over flattopped, eq headed, magnum rockered, performer intake and Tq carb. The cam was still up in the air, but i am only looking for max rpm of 6k, daily driver capable, with decent economy in front of my 833od . Well then a low mileage, under 50k, clean stock 340 fell into my lap. a virgin 71. I know NOTHING about 340's. Other than I rode in a 73 340 4 spd Duster as a teen, and it was the most impressionable car I'd ever ridden in. I've been in faster, quicker winding, louder... but something about that combo kicked me in the butt and I was a believer ever since. So what I do know for sure...it has a small damper and is drilled for a pilot bearing...leading me to believe it is a forged crank. It has my favorite carb....a TQ. our best guess is this thing being a 71. What can I look for and where to check the year? What can I check with the heads still on the block to tell me if the heads are a desireable casting...ie 2.02 valves. Compression? Now based on my wants and the 360 parts I have, will they do anything beneficial to a 340, would the eq heads be an improvement? or should I just toss in a decent cam, rings bearings and gaskets and go have fun? Thanks...any and all input regarding the 340 will be much appreciated.:violent1::burnout::happy1: