help with bolt ons
As for the airlids, anything is an improvement over the stock setup. I have a Direct-Flo. There are offerings from TSP, MTI, and others that are equally beneficial. The higher the cost will not necessarily equal more power gain. Spend wisely. Pair it up with a good filter (K&N, Holley, etc.) and it'll serve its purpose well.
A smooth bellows may or may not get you any power gain but it sure does look better than the accordian!
As for the rarity of the car. Cars really don't make good investments. Don't get hung up on the "my car is rare because it's a ..." school of thought. You will never see any exponential profit from the car ever so have fun with it! It only gets better from here.
Where in Pittsburgh are you? I used to live in Brookline and I still have a lot of relatives and friends there. I usually get there twice a year. Have fun modding! It's addictive.

