Oh wow! That is good.. I am thinking about these possibly but that combustion chamber on the TF is only 78cc where all the others are 84cc...Im not sure this small of a chamber wont cause more pinging..
It is a well designed chamber. Your cast iron head chambers are horrible. Aluminium dissipates heat way better, usually people can safely run a full point more of compression with aluminum heads.
I Milled my trickflows down to 64 cc's and have no issues with pinging. I run an octane booster and av gas 100 LL.
I would advise trying to work out your tune, it sounds like it's either going really lean up at full throttle or you have too much timing at full throttle.