Re using cast iron rings?

Mmmmm torque plates. In my almost 47 years of racing I’ve had one block (my R3 block) that has ever had a torque plate bolted to it. And I think I’ve had some pretty good running engines.
I've seen pics of Yer Mills Kicking the Dust Up! Literally lol
I've had some pretty decent Street Motors and I know the MP book recommends those torque plates I've just never had the money to do it besides that half the machine shops around here probably got no clue what the hell that was most of them didn't have them for Chrysler 30 years ago here.....