[Steve C.]

In contrast to the roller boogie...

This from Ken Crocie in a engine article/March-April '02 Pontiac Enthusiast magazine:
"We are firm believers in hydraulic cams for street/bracket engines and roller cams for race cars".
The article continues...
"If you examine the actual lift curve at the valves, a modern quick-lift hydraulic cam, in conjunction with high-ratio rockers and Rhoads Vari-Duration lifters, will approximate the valve-lift curve of a traditional solid roller up to about .600 lift. Over about .650 valve lift, the big-nose solid roller is king."

Note, for this piticular engine build-up they were using a cam with 268 degrees of duration at 0.050-inch tappet lift and 0.594-inch gross valve lift.