1970 slant 6 holley carb

don't know what carb would be exactly correct, but there's a wrecked 68 valiant that had a holley 1920 on it at the local pick and pull. looked original, with linkage and aircleaner, etc... i could maybe pull it and ship to you if you find out correct numbers, and they match. my 73 duster has a 1920 too (for now...) definitely came on car.
putting together a show car? i dont think it would matter too much otherwise.