Stroker specific cams?

you can use other lifters with Jones or other cams- He's eliminating the junk

Our Hydraulic Roller profiles are designed for the ultimate in street performance. Using our proprietary Inverse Radius technology, these profiles offer more area over the nose with less overlap, resulting in more horsepower and torque without sacrificing idle-smoothness and reliability. These profiles are for use with Hydraulic Roller tappets with a .750″ diameter wheel. These Hydraulic Roller profiles are for use in both street and racing applications, and require the use of our hydraulic roller lifters.

other lobes not in the online catalog
the "less overlap" is due to the shorter seat timing possibilities available with his IR

DO it fast do it wrong do it over