Info on sp2-p manifold

[gamehunter5]

Hello i was just trying to get some info on a intake manifold i had in my basement still in the box.The box says catalog 3000 and it has 2032 stamped on the box but no other numbers on manifold or box.The manifold has sp2-p stamped on it.I have attached 2 pictures to this message.
Thank for any help you could give me.