93_ Loyale

I am either going to block the intake or was thinking of having the head drilled out where the egr pipe should go so that it would be like the original. I'm wondering if the heads are identical so that if it was drilled and threaded that it would be just like the original head?

I bought a cylinder head for my 93 Loyale and noticed that the hole for the egr pipe isn't in the head that I bought. Can I block off the egr hole into the intake manifold without causing the car to run poorly?

Recently changed alternator on my 93 Loyale. Now my temperature gauge, fuel gauge, and air conditioner and heater blower will not work. Any Suggestions?