Well I'm pretty sure your v6 has cap and rotor and plugs and wires. If so you might wanna change out the cap and rotor if you have already got new plugs and wires. And you have a loss in power? Fuel filter could be a factor. You got the money to change it then I would then you know it's not that. How many miles you have on the motor?
Single cab shortbox 4x4 w/5.4 one of a kind