2001 Sierra

iTrader: (1)

Thanks for looking. Say- I'm looking to enhance my low end/ off- idle torque. I'm packin' a 5.3 and would like to know if a good starting point would be some 1.75:1 rockers on the intake side. BTW, anyone know the specs of the cam in the 5.3's? Down the road I plan to yank the engine and punch it out to 5.7, but gotta work with what i've got now, living at 7,000 feet isn't easy.........