I would be cautious on removing alot of vacuum lines, all are important for their own reasons. The Charcoal canister takes several vacuum sources for emissions to recirculate gas vapors (vent line running along the frame rail on driver's side from the gas tank), also recirculates vapors from your crank case from the PCV valve. Also, your Corvette came with an EGR equipped intake manifold that also supplies a vacuum source for this canister. There are several drawings on various forums and your AIM that show how all of this works. Now that being said, if you intend on eliminating the EGR and want to free up your Charcoal Canister, you could with some side effects. You would have to plug your vent line, eliminated the TEE from your PCV line, and get a vented gas cap but beware due to the gas fumes that will envelop you at each stop light, at least that was the case for me.
Other things.....
Eliminate your AC Evaporator Box and install an AC Delet cover unless you like your AC.
Remove your Brake Booster for your Master Cylinder and install a Hydroboost system which uses your Power Steering pump.
Eliminate your Clutch Fan and Shroud and install electric fans on your radiator.
Unless you are doing an entire engine and transmission swap (which is what I did) that's about it.
R/Razor