Full Race Cam developed by David Vizard, ground in the UK on a new Kent blank. Slot drive. 300/300 degrees duration. Cam lift .339". Use with 1.5 rockers, race head and 13+:1 compression ratio. RPM range 4000-9000. Kent blanks are rifle drilled then cross drilled to provide oil for each lobe. We recommend a drop of Loctite Hydraulic thread sealant on the threads of the plug upon installation.