Milodon timing-gear drive are designed for competition. Keeping the same cam timing weather you are on the street or at 10,000 rpms. Almost Impervious to wear, Milodon timing gear sets will keep it's settings indefinitely. Street or Strip, a Milodon fixed idler gear will make more power than a timing chain or a floating idler gear. WIth thier proven fixed idler-gear system is capable of maintaining consistent cam timing without siphoning off power, the way 4-gear types can. Timing changes are easy via Milodon's adjustable bolt-pattern cam gears and hub assemblies. They're available in a flat-cover style, which uses a stock-type water pump, or an injected/blown style, which doesn't use a stock type.