Roberto, I'm not really suggesting you "should" change to the Summit cam, I'm just saying it will be quieter.
The XE/HL cams make good power up to the limiting rpm of the lifters(usually around 5500rpm).
If you're happy with the performance, then you'll just have to get used to the noise.
Dwayne, my plan is (during the weekend) to try to get rid of the bog with carb tuning and try to see the 5000 rpm on the dash tachometer. Only after this test I'll take the decision if putting the word END to this damn cam or not. All is about the feeling of power, just the feeling ( no clocked times) , if the power is not much more than the Thumper cam , for sure I decide for the latter , it was very quite good high revv and impressive idling sound too. Will update soon
