How to verify the EGR port on a new s10 2.2 head will not leak

There's limited information available on the 2.2 S10 cylinder head 24576146. If you purchase a remanufactured engine you are likely to run into this issue of no EGR bolt holes for the plate that covers the EGR hole. Apparently on the GMC Sonoma this hole is incorporated into the intake manifold. On the S10 it is simply blocked off