I have to add my $.02 here - because I always have to when it comes to Webers. I have twin DCOE 151s, Holbay head, Holbay cam, lightened flywheel, and custom exhaust headers, and I LOVE the way the engine runs. It will idle smoothly all day long, it's got tons of midrange, smooth power, and it flows so beautifully at high rpm that it's absolutely intoxicating. Maybe I was just lucky at getting it jetted right. I don't know. But, this car is the snarling sports car it should have been from day one. Had Rootes gone this route, I'm pretty sure the Tiger never would have come to be (not that the Tiger is worse, but that my Alpine is enough of a character change that they probably wouldn't have made the change to the Tiger).
For what it's worth, I did spend a lot of time trying out different jet combos in real world driving, not just dyno. I ended up liking the F11 emulsion tubes better than the more common F16. I admit that the F16 felt like it gave a stronger WOT, but all rpms were noticably smoother, and rich with the F11.
As to hp from the 1725 engine, I have the brochure from Holbay somewhere. They list a three or four stages. As I recall, the highest was 160 hp. Perhaps it was called "Marathon".