Single or Dual Pattern Cam

Dan,
If you are using headers, I would use a SP cam. Also, read the Isky Cams Tech Tips: is extra exh duration really necessary
I'm going to be using headers, probably 1 5/8" long tube headers. I didn't realize all that went into camshaft selection, back in the day we would put a cam, headers, 4 barrel carburetor in our cars and we thought that we had a fast car when in fact it probably ran terrible. A 108* LSA has been recommended for me. I trust the recommendation but I think that it would be a good idea for me to still read up on camshafts so that I have a better understanding of what's all involved with doing the proper selection of parts. Everyone on here has made this more interesting to me.