BTW, Delta offers two different cam profiles, a fact that I never really see mentioned here.

straight from Jerry of Delta:
"For the 2.6 we have two grinds. The 260 is a smooth idle profile with improved midrange, was designed to work with stock parts. The 272 is more of a sport profile, will work with stock stuff, but will jump with improved carb and compression."

I think the 2.3 uses the same cams so maybe thats why he mentioned the carb.

For a more in depth look at how cams do what they do, check out this page.

2.6 Trooper
2.0 Impulse Turbo