I did a chart overlay of the AH speed chart onto the page posted by Wmaker. I did a linear transformation to align the 300 & 400 mph line as well as the 0 & 40,000 feet altitude. The small boxes in the original chart work out to be 2.5mph
All in all I'd say the speed is very close to the 1.58/1.65ata mark. It looks like the largest difference is about 5mph.
One other point I started thinking about last night. Given that it the A-8 has the emergency power system modeled and gives 10 minutes of WEP, looking at the first page of the general section I saw this.
So does that mean the 190A-5 should only have 3 minutes of WEP instead of 10 minutes? I'm sure I'll be tared and feathered now, but I don't have an A-5 manual to compare this to (and it may be a non-issue).