Ferrari F40 specs

Recently I have spent lot of time looking at how the Weber Marelli IAW overboost it works, and looking at Sierras, Escorts, Deltas, it opens a world.
Basically we can say that singularily the system may have small variances that determine non-negligible differences. The inputs are numerous, and this does affect the RPM range. Who really is inside these things know that torque affect acceleration performance more than how it could be explained in terms of power so I mean that just a single valve that open earlier just a little more boost than an other make a difference in terms of chrono.
In the case of the F40 we all knows that boost was setted to a fixed value of 1,1 bar with officially an overboosting phase of 0,4 bar, but cars tested around the world basically explain that value could be more or less variable by how the Ecu system, Wastegate valve and Pierburg valve works all togheter. I remember that Quattroruote cleimed they found 1,3 bar max on the gauge, Auto did 1,4, while R&T found 1,7 bar when overboosting their max value.
Who knows the F40 from close also know its engine carburation tendence to run lean after use, so, also variance on the air/fuel mixture running on that specific moment may be affect engine performance too. It's evident it run rean because of the amount of boost.
That said, looking at how this argument may vary performance on Sierras, Escorts or Deltas too, I'm not surprise to see fast numbers published sometimes by magazines on these cars running Weber Marelli Ecu systems even excludung who knows what amount of power!
For the same partially reason and that for example, there are Delta Integrale 8Vs tested faster than 16Vs that cannot be explained if not due to how the engine deliver the power, or the examples like Escort Cosworths running 0-200 kph almost close to be the double time than other Escort tested.

Just few examples:
Automobilismo Escort 0-195 kph 26.2s (dynoed 222 PS)
Quattroruote Escort 0-200 kph 26.0s
AMS Escort 0-200 kph 40.0s
SportAuto Wolf Escort 0-200 kph 23.0s (claims 305 PS)

If it wasn't a fact of how was effective the overboost on a 222 PS Escort dynoed and tested by Automobilismo magazine, we never soppose to be possible if the Wolf didn't that much faster.
At facts the Escort delivered 222 PS on the dyno, but it produced enough mid range torque (maybe momentarily 250-260 PS somewhere) to make Wolf Escort closer, more than other Escort tested.
That's exactly what I mean, there are bad or favourable conditions, brand new cars or well broken in cars, and also on turbocharged examples that will produce their power better than others.

Now, take these examples on the very fast F40s like Rombo or Motor test were, on cars that may been dyno tested even close to claims, so imagine when over 500 PS cars ;-)
I wouldn't see anything wrong with that.