Just wanted to make sure you saw the mods are for a Thermoquad.
There are no special mods if you use a square bore carb, like a Holley 4150/4160 style.
As mentioned, that was the hot set-up in Super Stock with a TQ carb back in the '70's. The Holley Strip Dominator and M-1 were recommended after that, but didn't need such significant mods to correct fuel distribution with a TQ.