Seller notes

DESCRIPTION: 307 Series: All-Out Racing Camshaft for Serious Motors and Big Tracks With approximately .307 lift and 260 duration, this cam took 6 months to develop just right. This is the cam for 20+. Special ramp designed for GX200s running 12-to-1 or higher compressions with gas or methanol. 9,000rpm. Use with dual springs (required) and 1.2 rockers. 12-to-1 or more compression. 108 ICL, 107LS. *Note: Use of rockers longer than 1.2 with dual springs may result in retainer-to-guide interference...

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