Gear noise, Type 1 vs. 901

[Bruce2]

One thing I have noticed with big engines and a Type 1 transmission, there is significant gear noise when decelerating in 3rd and 4th gear. I figure the noise isn't there with a stock engine because a stock engine doesn't develop enough compression braking like a big engine does.

What about a 901 5 speed?

Henry at Intermeccanica was telling me a few of his 901 5 speed cars made significant gear noise on deceleration in the upper gears. A friend of mine who owns a 70 911S said his gearbox is very quiet, not like his big engine'd VWs were.

For you guys with a 901 gearbox that is rubber mounted, do you hear significant gear noise on decel?