1995 5vzfe flooding
 

I know its very uncommon for a fuel injected vehicle to flood but this one is and i have no idea why. the engine has new, plugs, wires, maf sensor, valves are set correctly, and injectors are clean. it sells like raw fuel on startup then is intermittently very lethargic during normal driving, especially climbing hills. no check engine light. any info would be greatly appreciated. thanks