MysteriousGSR

Is anyone using the crower turbo cams ??? Cause i was talking to a guy at crower yesterday and he said those cams work really good in the gs-r's and on prodrag cars they have seen 40 hp increases, but on our cars he said that 20hp would be a good fig depending on how much boost were running and our compression. But they sound like there worth the money.anybody have opinion's on them?????