Since input torque is derived from required clamping force and the major diameter of the fastener, to offer a "factory torque value" one would need to know a few things first; mainly the bolt major diameter which differs from vehicle to vehicle. A bolt with a larger major diameter will take more tensile load before breaking; assuming the same metallurgy as a smaller bolt. Metallurgy also comes into play as well; though I won't open that can of worms. Even the structure of the hub itself, the intended usage/loading of the wheel/tire/axle combo all dictate what clamping force that assembly CAN take, and also what clamping force it NEEDS in order to hold everything together. For shits and giggles, if you provide me with your stud diameter and metallurgy, I can provide you with a fairly accurate maximum clamping force that the fastener itself can take before it exceeds the proportional stretch limit; and thus derive a maximum axial torque based upon that and your lube.
Yeah, I have that same antiseize in my garage too, and was curious what the K value was for it, but could not find anything stated implicitly. There may be some way to derive a k value from some of the other information shown for it, but I didn't want to bother putting in the effort when it is not something that critical to get 110% right.
Cliffs/TLDR: I suggest just keeping things simple and adjusting the torque value based upon the new friction coefficient, like what you did. That is a more accurate figure to act upon than the one-size-fits-all -25% rule of thumb. I think your derived torque figure of 74lb/ft based upon the averaged ~.165 k-value for anti-seize lubes should be well within the ballpark and "good enough for government work", as we say.
NOTE: Keep in mind that does assume that only kinetic friction value has changed and NOT metallurgy of the stud itself! Different metallurgy will stretch differently and ultimately fail at different points as well. I only mention this because I thought I read something about titanium lugs being used, which I have no idea come stock on some vehicles or not.
