ok so do 94 50 come already geared/ posi? or do the only come with a open diff/ legger? just curious cz the one i have already has posi bu would like to know if its factory or after market? also if its factory does any one know what the gearing would be? also what do the come hp wise stock from factory and what would it run 1/4 mile factory? also what would be pushing and running 1/4 mile after msd wires coil, royal purple, o/r h pipe summit racing magnapacks bbk cai and bbk pullies? just questions i got and hoping people would be nice and help a nebbie out.