eq magnum head valve springs

I just ordered new eq heads and called jegs to see what kind of springs I need for a bigger camshaft. I was told that the ones fully assembled had the same as stock and that they where designed or machined to be able to use a bigger cam with stock springs is this true. Im on an very small budget and need to reuse as many parts as possible.
Did you order the heads,complete or bare,and if complete: Who from?....