I'm saying a rod is giving up it's life sometime in the 3rd quarter of your next track day.
Now if you agree with assessments that your dyno is somewhere between 3-30% higher than a Mustang dyno, you're right around that magic 450wtq everyone talks about and you're fine.
I think you're right, as far as the "as long as torque is kept below" number, 420-450wtq was probably a dynojet number.Depends highly on what mustang dyno. Only a few real low reading units left in the country. Those are about 15% lower than mine. But it seemed like the 450 number was from dynojet?