i need valve spring help,please

They are a dual valve spring http://store.summitracing.com/partd...4542&N=700+400172+4294822607+115&autoview=sku i remeber they were expensive when i bought them back in 2001,but they have never been out of the box.I also have a mopar 509 cam i could put in this thing for a little while,and crane adjustable rockers.The engine is a 318,bored .030 over with flat tops,proted and gasket matched 302 casting heads,torker 340 intake,dynomax headers,750 holley vaccum secodary carb,904 tranny,still got to get the converter for that.Im going to order a stealth intake at the same time as the voodoo cam,because they seem to be a perfect match for each other.All this stuff will be put in a 360 in a years or so,so if the 318 is over cammed,and a slug,i guess it will be ok for a little while,lol