1973 A Body fuel injection tank

junkyardhero said
filler size, mounting strap (one crossways instead of two longways), capacity (16g v 18g), vents

(fwiw, i know Dr. Bob and if he says it doesn't fit there's a darn good reason)

Good to know, I thought the newer tanks were one size fits all. The one I have for the ‘65 has all the indents for 1 or two straps and all the vents for the later years.