P0301 Honda -and P0303 but engine running fine, original spark plug wires

Question

Code checker indicates misfire on cylinders 1 and 3 but engine seems to be running fine and gas mileage is almost normal. I re-gapped plugs, they look fine. Plug wires are 17 years old; coil has never been replaced.

Answer 1

P0301 misfire number 1 cylinder

P0303 misfire number 3 cylinder

Engine compression should be performed, there should also be a valve adjustment made also.