Toyota 1JZ 260° street performance cams. Improved low to mid-range power and fast spool. Good throttle response. Suits upgraded twin turbo or single turbo 54-64mm. Can use OEM valve springs up to stock boost and rpm limit. For up to 7500rpm and 30psi boost Kelford Cams recommend valve spring KVS109-1JZ._x000D_\n _x000D_\n
