Speed was advertised 139 KTAS for the older Tigers and 143 for the newer ones.
Those may be top speeds, but what I posted above is realistic.
My friend owned one and reported 128 KTAS?
You can certainly fly it at that speed if you want, and get fuel flow down to 8.5 gph or so.
Had another friend who was a demo pilot for American General in the early 90s. He said the plane wasn't even close to the book cruise speed.
I think you'll find the POH fairly accurate on that, but as I said, the speeds/fuel flows I posted are based on about 2000 hours in the AA-5-series, including a lot of time in other people's planes.
Range is close to 700 nm which is respectable.
Still air, zero wind, fly to empty tanks, yes, that's probably about right. But I hope you're not planning to make 700nm legs in one without a really big tailwind. FWIW, I made Chicago to Salisbury MD non-stop one time, but I had an 80-knot tailwind that day.
I owned a Traveler with only 36 gals and my range was only around 500 nm. Loved that plane.
The Travelers had only 36 gallons usable fuel, but the Tiger expanded that to 51. A few Cheetahs had the "standard" small Traveler tanks, but 90-95% came with the larger "long range" Tiger tanks.
That said, 500nm in a Traveler is pushing the limits of good sense without a good tailwind. The AA-5 is basically a 115-120 KTAS airplane on 8-8.5 gph, and if you do the math, that doesn't leave much reserve on a no-wind 500nm leg.