ive got a 2000 chevy ext cab 5.3 4wd, i was wanting more power and i need to take the engine apart anyhow to check things as it has 194k miles the only modifications it has is a k&n cold air intake, Gforce chip, and a higher flow exhaust

 

Depends on where you want the power and what other mods you want to do at the time.
and what you plan on doin with the truck

 

its gonna be a muddin pickup plus racin kids that think mommy and daddys money is top of the line, id like more mid rpm power plus higher top end

 

how much money you wanna blow on it?

Cam helps some but need headers to get all the power out of it.
Then a Stall so you can get to the power quicker


How big of tires? Gear ratios?

gonna have to get a good posi unit too

 

i was lookin about $700-800 total for the cam and headers i found long tubes i want to use its got 33x12.50x16 tires, 3.73 gear ratio

 

Those are pretty meaty tires for the 3.73's you have. Without a converter it will be a bit of a dog...

Also... the cam swap alone will cost you 7-800. Along with the cam you will need to swap the valve springs and the pushrods, then all the gaskets and fluids to accomplish it.

For a lifted truck I usually tell them to go straight for boost...

 

Me like boost!! but its not for the faint of wallet per say..

gonna need a good trans and a good posi unit, then a good fuel system and all the lil things. but theres nothing like it for power