MPG Motor Magnum vs. Hemi
AJ, I have checked/confirmed some valves start to hang open (hot) with .005" (cold) lash.
From digesting information from various sources I've gathered that hydraulic cam 'ramps' are actually quicker, because they are made with the presumption that the lifter is already in contact (preloaded) with the cam.
Solid cams have a slightly softer ramp to first take up the lash and then start with the actual lobe.
This is why putting solid lifters on a hydraulic cam can give a slight improvement (more rpms) over a hydr/hydr setup.
These days cam companies advertise with 'tight lash'-cams as if they've invented something new, but in effect they are just putting hydraulic lobes on a solid cam.