umm that makes no sense... if you run there super lock stuff they have 2/4 groove keepers. if you buy their 7* retainers (744-12) and 7* locks they come with 2/4 groove locks... all mopars have 2/4 groove and when you order for mopars you get both.
and if you run a comp cam there is a very high chance your gonna loose your oil pump
