NOTE: This
1984 article was the performance industry's first look at Jim Miller's INSTALLED
GEOMETRY. The illustrations, drawn by hand, duplicate the CAD illustrations used
by Jim soon thereafter, which he also published in the Lunati Cams Catalog in
1988, as well as this web site and other media over the years. Unmistakably
establishing MID-LIFT origins for the masses, which eventually leaked through to
Chevrolet's Raceshop duplicating this in a Car Craft Magazine article, entitled
VALVE TRAINING, by Rick Voegelin in October, 1992. But here was the
beginning.