Just purchased a 2001 yukon 4x4 5.3l. where should i start on the mods? further down the road will ls1 cams swap right in?

 

Everyone seems to start with the basic bolt-ons, air intake kit, catback, pullies, so I'm sure that's a decent place to start. All those little parts eventually add up to make for a decent gain.

All genIII engines are pretty much interchangeable.

later,

allen