drill flex plate?

I wish that was the case - I assure you it cannot be done with the B&M piece. Of course I will check when I pull the engine - but I didn't change anything when I pulled it last spring and it fit fine with the old tc.
S
the bolt pattern to the crank will not allow it to go on backwards
I would not drill anything like that to fit.. Thats me personally. I would compare it to the one that fits.

Woodie