Probably it is only a stupid idea....but why not to post a video showing the
tachometer and the acceleration between 50/60-130 mph or more and let us see how many seconds it takes? we can speak all the time about your results but since you feel a big change and the power is sure present into your car, it would be very simple to show the differences and convince everyone.I personally beleive in your report. This report is now discussed also in Italy in a similar Forum. And in many different Forums, there are some skepticals (it is absolutely normal)..so why not to show the results in a way that could convince many of them?
This is not a disrespect against you, simply it is an idea. I have seen on youtube many videos, similar to this idea..
and it is very simple with a clock, to see how many seconds it takes from a speed to another. Sure someone more expert than me could suggest from which speed to another to make this test. Probably not starting from zero, since more difficult. This is only an idea.
I am sure that 46 hp would have a releavant increase in performance...
Just an example of the idea: