Low speed torque and driveability ?

Newbomb Turk said

Not really. That’s almost 25% loss. Which is expected with a truck.


So your 25% is off the majority of the time.

In fact, I can change tire pressure and gain or lose a couple of percent.

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I was only using it as a guideline. If you take the claimed flywheel horsepower and multiple it by .80 it's pretty close to what he said that the rear wheel horsepower is. How do you gap your spark plugs, are you sure that the gap is a 100% correct? If your not using a gauge that's been done at a machine shop instead of a product gauge then that's off to. I'm not perfect here