Can someone tell me what this Carter carb came on? Year model, engine, cfm size, etc?

It has Carter written on it like this... CARbureTER with the "bure" being a lot smaller and inset.
Also says WCFB.
It has a cast iron base, it's HEAVY!

Anyone know what it came off of? Thanks, CHIP

5599117-cartercarb2.jpg (78 downloads)

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax