ok so i have my motor sounding like a Diesel at idle...i need some badass lifters that will handle high rpms..i have been looking at the Morel hydraulic lifters but does anyone know if they would require different pushrod size?
also heard about the ls7 and ls9 lifters?anyone run them,would hate to put them since there oem and they go out again.

so you 700hp+guys what are you running?