Most place do not use the STD correction factor. It will normally show numbers around 3-4% higher than SAE will since it corrects to a lower temperature plus a higher barometric presure.
STD is defined as: 59 F, 29.92? Hg, 0% humidity. It is the same thing as 100% RAD.
SAE is defined as: 77 F, 29.23? Hg, 0% humidity. It is the same thing as 94.4% RAD.
RAD = Relative Air Density
So drop the entire curves by 3-4% and then step back and take a look at them again.
For instance:
That 175HP STD graph would be around 169HP SAE at peak.
That 155TQ STD graph would be around 150TQ SAE at peak.
IIRC my old dyno "STD" numbers were mid 190's & mid 170's.
