Kelford Cams 4G63 VR4 EVO 1-3 Camshafts 1-TX280R
280°/288° | 11.50mm/11.50mm Valve Lift - 280° high HP racing cams to suit well built time attack and drag racing engines. Suits 64mm+ turbo. Great with E85 and similar ethanol blend fuels. For up to 9000rpm and 40psi boost Kelford Cams recommend valve spring KVS63-BTK-X.