On Mon, 04 Aug 2003 16:38:19 GMT, "Bruce A. Frank"
wrote:

That is for sure. Corky's rocker arms change will be interesting and I
cannot see anything detrimental to the engine by making this change, but
I too long ago learned to take auto parts mfg. claims of bolt on HP as
sales pitch. Roller rockers have benefits but a 20 horse bump is
significant.

Bruce A. Frank

There is one consideration. That is valve mass acceleration and
deceleration. If you lift the valve a greater distance in the same
amount of time, good valve springs and good seats become critical. The
higher ratio rocker is a better solution than a taller lump on the cam
since the lifter, push rod and rocker acceleration are not increased.