Powering out or stalling at different times on 1991 Chevrolet 1500 Pickup

i can be driving and hit 60 km/hr or 80 km/hr and the truck powers out or stalls right out while i'm driving kinda feels like it has the hiccups after a nite on the town

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1 answer 1 comment
Check your fuel filter for clogging. Replace it anyway if it's old or won't pass gasoline freely.
replaced fuel filter, spark plugs spark plug wires and distributor cap and rotor and the chugging has gotten worse i hope it's not the map sensor or the torque converter...