Indy 360 T/A VS Indy 360-1 VS Eddys heads

Is there a reason you don't hear of many guys running the Indy T/A's on small blocks? I am trying to decide between these, Indy 360-1 or the infamous Eddys. I completely understand the limitations of the Eddys (std pushrod location vs offset), but I am really trying to find out the difference between the T/A's and the 360-1 heads and if the extra cost is worth the performance gains over the Eddys. Just building a 75% street/25% strip 408cid 1972 Dart and trying to see what is money well spent. Thanks for your time and any input.

*I'm guessing this topic has been brought up before but I can't find it in my searches.