I don't see why not, the power range for the E-cam is within stock spring specs. My stock springs are holding up just fine, and I abuse the hell out of my car at the track.
I think the springs on the AFR's will be ok, but Fett I am surprised your springs don't bind or have any other problems. My stock springs were completely overworked with 1.6's after about 25k miles. I bet you would notice a little better pull on the top end if you put some beefier springs in there.