Ive been lookin for a cam for my 2000 silverado for some time now and the only one i can find will cost me over $500 and its not smog legal. Does anyone know of any companies that make cams for these new motors that arent gonna cost me more than what the performance gain will probably be worth? And if its possible maybe even be smog legal? Swapping out a cam for a smog test every few years would not be fun and if i can i would like to be able to avoid that.