[QUOTE=jimtmcdaniels;19067828]Say Matthew Sir,
It's wise of you to ask what can be done to increase the power of the motor, I have the same 5.8 in my extended van.

Just looking at mine, it appears it's already factory supped up. I mean even down to the dual exhaust.
Plus it seems the general info is there's not much more to do to get more power than the factory setup.

It seems the only thing I can do is see if the ignition timing can be advance-adjusted some more without causing knocking.
(Plus I'm looking at adding some loose cheap magnets to the gas line, some say if positioned right, can helps declutter the hydro carbons more before burning. Others say there's no such effect.)

But our vehicles are made for hauling. Mine, hauling around the heavy extended length 1 ton van with also 3,000 lbs of people, and a possible trailer.
So these engines is definitely built with torque in mind.

So I think you are barking up the wrong tree aren't you, asking to get something out of the engine that we can't resonably?

So the cure might be to change our attitude and thinking about it.
I mean, why do you want, you say "fun in the power Dept"?

What fun is it throwing around these big heavy vehicles, racing up to stop lights just to stop again?

Isn't there a responsibility, lives depending on what we do and don't do, when we are behind the steering wheel that limits our fun to be had anyway?
Maybe we should leave the real fun where it belongs like in the bedroom and keep it real on the roads where lives are on the line.
Just be happy with the size of the engine that's under our hoods.

The 5.8 isn't the smallest engine available to start with, it's the sweet spot before moving into the biggest 460 gas hog or the diesel.

Take care bud[/QUOTE
You're 9 years late to this here party