SVT has a smaller motor for one, and second it has a broader powerband...flatter torque curve. They could have made significantly higher torque figures if the powerband was narrower just by manfold and camshaft changes.
Former owner of '99 CSVT - Silver #222/2760
356/334 wHP/TQ at 10psi on pump gas!
See My Mods
'05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red
'06 Mazda5 Touring, 5spd,MTX, Black