Lightning:
Horsepower: 380 hp @ 4,750 rpm
Torque: 450 lb-ft @ 3,250 rpm
Harley
Horsepower: 340 hp @ 4,500 rpm
Torque: 425 lb-ft @ 3,250 rpm
So you are down about 40 HP and 25 Torque to the Lightning but I have read that with a few mods you are right back into the same HP/Torque range as the lightning so go with whatever you like the look of better.