Help! Gasket part numbers

[Batmobile]

Hey XLR people! Need your help with identifying some part numbers for accuracy.

Doing engine bushings, change all hoses, and since the supercharger has come out, gaskets!

As you can see from the picture below, oil residue coming out of the engine covers and baked there.
Those are the engine cover gaskets, but which are the other ones below?

 

[mickeytee]

12590737 Gasket - New OEM Part From GM Parts Direct | GM Parts Store

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[Batmobile]

Thanks mickeytee,

So for reference..

R, Cylinder Head Gasket	12613034
L, Cylinder Head Gasket	12613033
R, Valve Cover Gasket	12576394
L, Valve Cover Gasket	12576395
Rear rubber seal for S/C intake	12584008
S/C Gasket	12590737

Unfortunately the rear air intake boot is discontinued, no longer manufactured part no. (12584008).
What's the best alternative?

 

[mickeytee]

best be very careful with it and not damage it .its just a rubber boot and most likely some aftermarket hose will fit . Might want to pull the power steering pump pulley off and inspect it. the pulley insert with the splines that go over the pump wears and if loose on the pump will strip out the pump. I have parts for it but they are rather expensive for the pump if you let it go too long before pulley replacement.