knocking engine

Seems as though I have a crank bearing or something knocking away in the lower half .so shes going to have to come out , question is  I would like to gain some power on the rebuild and am looking for some engine/induction modification suggestions . Its a 1996 H1 gasoline . Please no one say whipple supercharger I need to keep it simple I live in Costa Rica so good shops and mechanics are far and few Thanks in advance

i would get better heads, cam, intake, then upgrade your exhaust also maby computer upgrade to go with all the engine upgrades.

It is just a Chevy 350 motor in your gasser; if you want to keep it simple, and especially considering your location - I would pose this question to your local shops.