Really not a valid question. What oil weight were you running.. what was the oil pressure. If you were running 10/30 and all was fine, 20W50 could blow you off the scale.
Based on engine clearances, I run them all in my cars. You just need to nail down which one is right and stick with it.
60 mile cruise in the '66 HP2 today. Couple stops for a beer and lunch and she still wants to hang out in a fume filled shop. Gotta love her, 45 years of bliss and still going!