The cam that S&S uses in their Hot Set Up kits. Best suited for stroker motors up to 88 cui.with 9.5:1 and higher compression ratio or big inch engines up to 98 cui and compression ratios up to 9.5 - 10:1. Moderate duration makes for great mid range performance where most riding is done. Hi-lift springs and collars and adjustable pushrods are required. All clearances must be checked.