I'm getting ready to buy blower cams ...finally. All of my car's head work was done prior to me buying it. I know that Steen Racing ported them and installed PI cams, but I have no idea if they replaced the stock valve springs with aftermarket one's. If I pull my valve cover, is there any way to tell if they are the stockers just by looking at them? I know that 99% of the aftermarket springs are the beehive design. Is that what the stock one's look like as well? Also, is it possible to change out the springs on a 4.6 2V with the head still on the block if I need to?