Ha its funny you call afr heads junk. I dont want to get into a pissing contest with you because you are obviously biased but the AFR heads are by far not junk and are arguably the best head on the market. I am pretty sure with my work i have been around more hi po engines than you have and the majority of them use AFR heads.
Now that isnt to say TFS are junk because they arent. the TFS heads are damn nice as well and like I already stated I will use them on my car when I buy the total top end kit from Summit.
I dont know if you get Muscle Mustangs and Fast Fords but they went through a pretty in depth article about cylinder head testing you might want to check out
