[P.S.]

I am the current MAFCA liaison to the Judging Standards committee. Here you go-

If the judges cannot tell the part from an original part, it receives full points. That includes texture and finish. If the judge can tell the part is reproduction, it receives a deduction (this can be arbitrary). If the part is a correct Model A part but incorrect for the month/year, it receives a deduction. If the part is clearly not a Model A part, that part receives zero points.

Terry's advice above is good advice. However, some people on the Judging Standards Committee are now discussing the differences between an original Ford engine block and a Burtz block so that it can be identified as a "reproduction part". If it is identified as such, it will likely receive a deduction or possibly zero points, the same way a B block in a Model A would, at the discretion of the Chief Judge.

Hope that helps.