im currently runnin skunk2 stg.1 cams, skunk2 valve springs, skunk2 retainers. stock bottom end. i dont plann on runnin past 8.5k. im commin up on 20k on since i had the head done and its time to replace the ti retainers. my question is could i get away with puttin in my stock retainers? its just a daily driver only gunna see 8.5k ?