The COMP Cams CS XR300H‑R10 camshaft kit is supplied as a full K‑Kit—camshaft, lifters, valve springs, retainers, locks, valve stem seals, timing chain set, assembly lube for flat tappets, decals and instructions—ready to install. Intended for pro‑street and bracket racing, it favors high stall converters (3500+), strong intake and header support, and produces a very rough idle.
COMP Cams Camshaft Kit CS XR300H-R10