Is the tubular exhuast ( the headers that hook up to the air pump), I think thats what it is called worth purchaseing. I haven't decided wether I am going to get headers. But if I did I don't really want to mess with the air pump. I'm trying to go for a stock appearence but with some performance modifications. Does anyone know how much the air pump headers vs. the regular headers horspower gain is.

Yes it is worth it IMO. There are two companies that make them for the late elkys. Hooker and Edelbrock. Both are a good product but the Hooker is the better choice.

They are both E-legal and have all emission hook ups.

You might want to consider doing the exhaust at the same time. The reason I say that is that you can use the headers for the L69. It has a slightly better Y-pipe and a larger cat outlet and the cat flows better.

They have a four bolt flange instead of the 2.5 slip on cat.