[Steve C.]

A related tidbit....

Ken Crocie did a 455 pump gas engine build featured in Pontiac Enthusiast magazine that used a Comp Cams 320H hyd flat tappet cam with 268 degrees intake duration at .050", Rhodes lifters and Harland Sharp 1.65 rockers.
It netted an actual 0.606-inch lift 'at the valve'.

Here is an interesting comment from Ken from the article....

"If you examine the actual lift curve at the valves, a modern quick-lift hydraulic cam, in conjunction with high-ratio rockers and Rhodes Vari-Duration lifters, will approximate the valve-lift curve of a traditional solid roller up to about 0.600" lift. Over about 0.650" valve lift, the big-nose solid roller is king."


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