I thought those carbs used the early fuel valves with a nut, a projecting stud with a screwdriver slot?
That is NOT the color of the aluminum casting that I would expect from back then although it resembles the more recent Blue Thunder manifold color?
I would not find this coloration to be incorrect, as other components appear consistent with the claims made. The color of the aluminum, is based on the alloy itself of course, but influenced by the blasting media utilized post the casting process. The alloy & the blasting media utilized may remain constant, but the condition and purity of the media varies as the media is utilized in its' function of casting surface blending and general "clean-up"; this causing some minor variations in surface texture and color tint or shade presentation of the finished product.
Also for consideration, this unit appears to have been protected from other environmental contaminants, such fuels, oils, greases, dirt, water & just plain oxidation, all of which decades later will influence the appearance, if only gradually, but will change ones impression of what may be "correct".
And, as far as the "fuel valves", I am assuming you are referring to the needle & seat assy.? I believe you are referencing what is a two-part (stem w/ flat screwdriver slot & 9/16" wrenching brass hex-nut) product which is not of Holley production, but rather a "Jiffy" repair product (aka. after-market), and does seem to appear throughout the 1960's applications.
Scott.
BTW. Is that a Ford "SK" number reference on the box?
Hey Randy, isn't this your department?