What oil/oil filter are you guys running in your stock 340's?

I always liked the Baldwin B2 filter. The independent parts store where I bought them closed down though. Wix are great, but were recently bought out, and they are not the same anymore.

For good oils for your classics, look at European spec oil. They haven't declared war on anti-wear additives in most oils like the API has. ACEA A3/B3 and A3/B4 rated oils have lots of anti-wear additives for our flat tappet cams. Also look for Porsche A40 and Mercedes Benz 229.5 specs.
One of these oils is Mobil 1 FS 0W-40. 1000 ppm phosphorus, 1100 ppm zinc, and about $22 for 5 quarts at Wally World. Another, for even less is Quaker State European 5W-40. Not quite as much ZDDP as the Mobil 1, but a good amount of molybdenum. Around $18 for 5 quarts.