Say Why Blower Manifold??

Thanks. I found this that says 51-58 Chrysler engines. GMC 671 supercharger.

[URL]http://www.thehemi.com/forums/viewtopic.php?t=4141[/URL]
As abdywgn stated, that is a wedge(looks wide for 413-426-440), 6-71 manny...that is an awesome piece of old-school right there!!!