hey guy's, i need to put my head's back together but i got a small problem, as i was pulling the spring's off the head 1 retainer poped off an well it's gone now lol, i am asking what kit would work with my stock 318 valve's in my 714 head's?? i am also running the comp 901 spring's as well... just need some help so i can get the girl back on the road thanks for any info guys