Ernie brings up a thought, but I'm not sure if this is correct...isn't the 390 a mechanical lifter moter? If so, if you put hydraulic lifters in it, would they have the
oil supply to "pump" up and function as hydraulica? If not, then they would act as mechanical lifters, right?
earnie, my book shows 100-110 ft-lbs for the factory head bolts (does ARP have separate specs? Don't know...), and I've never heard anyone recommend different torque numbers for higher compression...
Retorquing, I've heard yes and no, depending on the head gasket, but I think the phrase is "...retorquing is not necessary...", but I never heard any manufacturer say NOT to retorque...retorquing seems to be a good idea as a rule of thumb.