My goodness, those links Navy posted is like an automotive textbook online.
Anyways, to get to the point short,
"Staggered" cams means that the Intake cam profile is slightly less aggressive than the Exhaust cam profile. For example, what Navy posted above the 262/271 (I'm going to assume it might've been an error and really is 272) means the profile of the Intake camshaft is set at 262 and the exhaust camshaft at 272.
Staggered cams with the proper tune provides a more stable and linear power availability. Oversizing and making your cam profile "even" at both the Intake and Exhaust side allows for some insane pull at High RPMS, but lacks efficiency at lower RPMS. Not to mention an odd idle.
Read up on those links, they're really informative.
Navy is like the tech guru, I'm just knowledgable about modifications and tech when it comes to the performance of the vehicle. I'm the driver, I let the real brains, like Navy, do all the talking. I just drive.
=D
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Cornering Junkie 
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