Brewers wrote back, pretty quickl I might add, they only would carry the fiberglass hump, but's not available at this time. I don't know if I'd like the fiberglass, I'd rather weld it into place for added strength.
"Fiberglass floor tunnel fits 1963-66 A-body cars, oval boot opening, uses shift boot SB764 with stock round handle, or SB764R with rectangular handle."
The picture is just from their ad;)
http://www.brewersperformance.com/proddetail.php?prod=FT732
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