None of that kind of information was ever recorded.
Of course the Hi-po has unique venturi boosters and that IS A MAJOR DIFFERENCE, and those booster numbers are available however as far as what those actual measurements for all the things on the boosters that is the hidden info, along with how those react with all of the bleeds and discharge passages.
The Hi-po carburetor flows COMPLETELY different than any other of the 4100's 1.12 or the 1.08's. It flows more like a specially prepared race carburetor which in fact it was. Flow is really the wrong word however, it still "flowed" at (a conservative) 600CFM however the fuel to air ratio was a healthy 15:1 ratio rather than the "normal flow of around 12-14:1.
One has always had to be careful about the hi-po carbs and having the correct boosters since these aften are incorrect, my theory on this is the hi-po carbs that have made their way onto original cars (mustangs) or put on cars have flowed so EXTREME and basically have been race carbs installed onto street cars that they have had trouble tuning them and brought them into experts who have "detuned" them by installing regular boosters which then have upset the delicate balance of these finely tuned carbs.
Either that or the boosters have been robbed and then the carbs have been sold as original Hi-pos when in fact they are not.
Hope that helps,
Bill White
White Automotive
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HAVE A NICE DAY!!!!