LQ4 heads mill???
i have a 2002 LQ4 proyect and i want little bit more power, now i think in change the camshaft (290/297 625"/625" 109° Cam),the valve springs, hydraulic rollers, pushroads, rockers, and put 440cc 42 lb injectors, and if is posible mill the heads ( but i dont know how much mill), and if i have problem with fit later the intake manifold (holley sniper hi ram) because of the mill.
i hope you can help me.
thanks



