Help on fixing a vapor lock!!!

Too warm for carb icing as well, unless you live where its below 65 degrees and very high humidity.
Fuel filter doesent need to run full. If it was that important,all fuel filters would be clear.

Imagine a gravity fed fuel line where horizontal filter is mounted. A free flowing filter would only run 1/2 full,flowing out as fast as it flows in.
Dirty filter will restrict flow,backing up inside filter.

Water in gas could cause your symptom as well. Engine quits, water settles back to bottom of tank,engine restarts,water blocks sock in tank and engine quits.
Had a truck i found 3 gallons of water in tank. Would idle all day, shake truck and it would quit.

Also pull a couple spark plugs and see what they look like.