hey guys, just wanted to make sure i got the right stuff. im changing the stock valve springs after 70k+ miles on the unopened longblock. i ordered comp cams 980-12 (jegs) springs and 502-12(jegs)seals. my cam,etc. is all stock. i should be good with this setup,right? also, should i change retainers or anything else?-im thinking no but again not sure. and last but not least, can anyone post up a good how to install valve springs link. ive looked everywhere in tech and engine sections but cant find anything very good. thx fellas-j