[cdminter59]

Go to Comp Cams website to use CamQuest software. Part# 12-769-8 grind# XR268R would give you 361.8 hp @ 5000 rpms and 413.9 torque @ 4000 rpms. XR274R 12-770-8 would give you 367.5 hp @ 5500 and 405.3 torque @ 4000 rpms. If buying the kit add a K in front of the part #. Comp. list the kit for $955.06, this includes cam, lifters, springs, retainers & locks, push rods, and timing chain & gears. A mechanical flat kit K12-677-4 is similar with peak hp 361.4 @ 5500 and peak torque 400.6 @ 4000 priced at $451.30 with same parts included in the mech roller kit above.