440 871 supercharger ?

Are the dowel pins present between the case and bearing plates?
Is the manifold warped?
Lay the blower on the manifold without a base gasket, does the blower rock around, or sit nicely?
yes and its flat no rock around...i was told to do it right a shop could relocate the dowels from 5/16 to 3/8 and get the 0.05 thats needed