Admittedly I'm new to 4 cylinder bikes, but I have a 4 into 1 supertrapp system on my 84 nighthawk, and I'm noticing a serious flat spot between 3-6k rpm's. I was told by one shop that the 4into1 systems were really only good for high rpms. Is this accurate? I'm wanting to get some more power in the lower range where I'm really doing my riding. I don't think the carbs are properly synced yet, it seems to be running rich. But before i spend a bunch of money on tuning I want to make sure I've got the best system for what I'm after