OK Gentlemen, I have a question that not only applies to GRP engines, but to all of them.

What does it mean, when after a high speed pass you apply brakes, and the engine revs high for a couple of seconds and then idlle drops down drastically to the point that it will die?

I was reading an article by the late Ron Paris, and maybe I misunderstood, but there is states, that when coming off a high speed pass, you should listen to the engine and it should have a slight high rpm before settling and if not to continue to lean the LSN......

Any help much appreciated....