Don't know why Dusterboy15 is trying to skimp on valve springs by not using what's recomended but I suspect it's cost. No argument about the benefits of the beehive springs but they are going to cost more to install than the recomended dual spring.
Dusterboy15 you really need to rethink what your goals are for your car. The last I heard you were using essentially stock heads. You are now taking about cams that the heads can't support. If your car is primarily a street car you will be much happier with the XE262 or XE268 cam (or the Voodoo equivalent) than the two you are talking about and those do not require double springs.