Brian,
I am assuming from reading your post that you're learning the LT1. The plates are for your manifold. The "pullution pump" air pump can be removed in its entirity if your application is tuned for it or if you have the proper plugs. The pump does not use a belt so no worries there. This said ensure you are doing things in the correct order. If you are installing these headers and removing your emission equipment then you should have a tune. Tuning will greatly decrease your chances of having an issue. What I would do first is all the free mods and work my way towards goals. You said you already have headers which is great but are you using rear o2's? If you're using stock exhaust then your headers aren't doing to much good until you upgrade from stock exhaust. I don't want to babble and it is late and I've been up for 20 hours but tell us your plans, budget and goals and we will definitely get you headed in the correct direction.
I am assuming from reading your post that you're learning the LT1. The plates are for your manifold. The "pullution pump" air pump can be removed in its entirity if your application is tuned for it or if you have the proper plugs. The pump does not use a belt so no worries there. This said ensure you are doing things in the correct order. If you are installing these headers and removing your emission equipment then you should have a tune. Tuning will greatly decrease your chances of having an issue. What I would do first is all the free mods and work my way towards goals. You said you already have headers which is great but are you using rear o2's? If you're using stock exhaust then your headers aren't doing to much good until you upgrade from stock exhaust. I don't want to babble and it is late and I've been up for 20 hours but tell us your plans, budget and goals and we will definitely get you headed in the correct direction.