In reply to:
Also too aggressive of a cam profile and the duratec's wide useable powerband won't be so wide anymore, and you'll feel like your driving a duratec with VTEC as your power won't come until high in the revs.
As far as a road racing application goes, a wide powerband is not as much of a priority as it is in drag racing and street use. Thats how lemans cars can get away with huge turbos that only spool in the upper rev range. My car has a terrible power band, but i never leave the 6,000 to 8,500 rpm range, so any low end torque would be wasted.
