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

I run a 440 6bbl, but I believe my input is valuable.
Oil? Well there are a good number of great choices and way more really bad ones.
If flat tappet lifters, I suggest Valvoline VR-1 which I've used over 7 years. IF you can find one of the lubricant brands like Joe Gibbs, Brad Penn, Kendall, and other well known names that formulate for flat tappet lifters (if that's what any of you have) that is critical. Weight is based on bearing clearance first and foremost, and materials used for rings and bearings, how "used" (worn) the engine may be, and the temperature of the oil. Temperature when cold may be a problem if the weight is too high.
OIL FILTER?
Only ONE choice, IMO:
WIX or one made by WIX, like NAPA Gold.
PERIOD