23-10-2014, 03:11 PM
I'd get rid of the fuel 'power valve' and swap the airbox back to a stock one for starters (the hot intake air won't help with the sluggish feeling) and those power valves are poop.
But they generally don't have a huge amount of go down low, but as you say over 3.5-4k they pick up quite nicely.
But they generally don't have a huge amount of go down low, but as you say over 3.5-4k they pick up quite nicely.
![[Image: Ty8kl7b.jpg]](https://i.imgur.com/Ty8kl7b.jpg)