Brian likes to apply them to builds , and advances / retards initial cam timing ,as needed .
ROB : That narrow (108 l.c. ) Crower aggressive ramp hydraulic tappet cam series : "Hydraulic Hauler " They advertise two : The quicker ramp one, is the better of the two. Seems they are mixing older generic grinds, with the 108 l.c. grinds. Just a heads up.