Thank you! The trans is a TKO 600. In part some of the reasoning behind what I did (keeping displacement smaller and aiming for higher rpm) was to keep peak torque to a point that it wouldn't immediately destroy the trans.

If that plan fails I would move to a different trans altogether, I believe the TKX is still rated at 600ft/lbs.

The clutch should be the softest way of transmitting the power as it's a light pressure plate and organic discs. (IMO a heavy pressure plate and aggressive disk material could be more grabby and put more of a spike in tq to the driveline)