I have a 350 tbi that has a lull or bogg on accel, its worse after shifting to 2nd or 3rd. Its close to a stumble but not quite that bad. So far I've replaced the fuel pump and filter, plug wires,cap and rotor,ect sensor,map sensor.The truck has new dual exhaust on it. So far nothing has helped so I am open to any advise. Oh yea I forgot to say this when it boggs you can throttle past it. Thanks. Tony
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