hey so i have 1991 short box with a 4.3 fourwheel drive 5 speed the motor is completly stock right now do you have any ideas for fairly cheap engine mods ?
yeah, drop a 6.6 duramax LLY and an allison and you should be good to go.
change the rotary bug and cap, plugs and wires, throttle body spacer and somthin i always did was turn the breather cap upside down.
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