Track and drag racing cams to suit high rpm turbocharged 700hp-1000hp+ SR16VE/SR20VE engines. Suits 67mm+ turbo. Great with alcohol based fuels. Large off-VVL lobes for improved mid-range power, VVL lobes will pull to 10k+ rpm. Kelford Cams recommend KVS10-BT valve spring kit. Primary lobe spec: Intake: 260°/10.2mm | Exhaust: 260°/10.15mm