Naturally aspirated racing cams to suit well modified engines. Suits engines with high compression, ported cylinder head and good intake and exhaust systems. Mild idle on plenum style intake manifold. VVL crossover around 5.5k rpm depending on engine. VVL will pull to around 9.5k rpm depending on engine. Kelford Cams recommend KVS10-BT valve spring kit. Primary lobe spec:

• Intake: 250°/10.2mm | Exhaust: 246°/8.3mm