Gives .425" valve lift on Panhead; .405" on Shovelhead. Mild street cam. Smooth idle; more power throughout RPM range. Installs with no headwork.

Gives .470" valve lift on Panhead; .450" on Shovelhead. Basicly an ''A'' grind cam; but with delayed timing to help eliminate ''pinging''. More power than stock cam. Should install with no headwork.

Gives .470" valve lift on Panhead; .450" on Shovelhead. Street. More midrange and top end power; smooth idle. Should install with no headwork.

Gives .507" valve lift on Panhead; .485" on Shovelhead. Hot street. Much more midrange and top end power. Smooth idle. Good choice for modified motors and small strokers. Solid lifters recommended; spring spacing required.

Gives .535" valve lift on Panhead; .510" on Shovelhead. Street/Drags. Hotter version of the Andrews B2 cam. Pulls strong from 2500-6500 RPM. Good street cam for 84"-88" motors. Solid lifters recommended.

Gives .550" valve lift on Panhead; .525" on Shovelhead. Street/drags. Best production cam design for big street engines. Strokers from 84"-96". Broad torque range pulls from 2500-7000+. Solid lifters recommended.

.370" valve lift. Hot street. Much more midrange and top end power. Smooth idle. Good choice for modified motors and small strokers. OK with stock springs. This is the Knuckle equivalent of the Shovel B cam. Note: Knuckle cam bearings are ground to .8115" to fit stock bushings.

.427" valve lift. The low compression version of the ''A'' cam. To be used on engines that have low compression (1:8 C.R. or less) pistons installed. The reduced duration improves performance.

.490" valve lift. The low compression version of the Andrews B cam. High lift combined with short duration will improve performance on low compression engines (8:1 C.R. or less). Note: For 81-82 models. The height of original stock H-D valve guides restricts spring travel (and valve lift) to .430" or lower.

.510" valve lift. Longer duration for modified street engines with hydraulic lifters and 9.0 or higher compression ratio. Power range from 2800-6500 RPM. Improved upper end performance. OK for hydraulic lifters and springs. Note: Small base circle cam. Adjustable pushrods; or longer pushrods; are required to gain extra length to compensate for the smaller base circle.