80457 is the list number.
Originally Posted by dc1955
http://www.holley.com/TechService/ListNumber.asp (List Number & Date Code Location)
4160 is the model number:
http://www.holley.com/data/TechServi...%20Listing.pdf (Holley Numerical Listing)
According to this 4150/4160 exploded view, only mid 70s & earlier carburetors used those two parts:
The question I have is during reassembly I see on the instruction sheet shows the pump discharge check ball and ball weight that goes under the pump nozzle.
I don't recall one being there when I disassembled it. Do all these model carbs have those parts?
http://www.holley.com/data/TechServi...ded%20View.pdf (4150/4160 Exploded View & Nomenclature)
May God's Grace Bless You
'78 BRONCO: 508" stroker, TFS heads, Dominator MPFI & DIS, cold air induction, dual 3" exhaust/Magnaflow mufflers, 100HP progressive dry direct-port NOS, A/C, Lentech Strip Terminator wide-ratio AOD, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, custom traction bars, 4" lift, 35" mud tires