been having this condition for a couple months. Cranks and starts when dry weather but when even a short rainfall the ol girl just cranks. Pump, battery, starter are good . Mechanic said he couldn’t replicate and pressure from pump is good. Plugs, cap, rotor etc have only 10,000 miles since new also fuel filter. When I crank it gets flooded so I wait several hours then she’ll start right up. Idle is spot on, runs smooth, acceleration is good. Thoughts and input?