440/727 Flexplate?

I'm at a bit of a dilemma here fellas. I have a fully rebuilt engine and transmission. Car of subject is my '71 Fury 4 dr sedan. Engine dyno'd at 410 horsepower, trans has 22-2400 stall converter, shift kit, rear is 3.23s. I purchased an ATP flexplate with the correct 6 bolt crank, 10" spaced 5/16 converter bolt patern. It looks like an oem replacement. It mates perfectly to the converter and crank. My question is, WILL it hold up? It is stamped "made in Mexico ". I originally was going to...

440/727 Flexplate?
Author: A38E86D32