The weight on the nose will make it push, best to mount it to the seat. Cut it in half,, half on each side.
You haven't said what brand kart or the details of your set up,, might help.
Take a good look at the RF negative camber. With 25# of air that tire doesn't flex at all and with ,,say,, -3* camber your only running on a narrow ribbon of tire. The tire won't flex much at 14#, so more like -2* or maybe less. Make a chalk mark across the RF tire to see how much tire surface you are using after you make a practice run. As you get close to using the whole face of the tire the kart will begin to get twitchy, a bad thing, you'll need "some" RF negative camber but more is not necessarily better. Take a good look at your right side tires, one may be better on the RF than the other,, close looks !
Once again, this is all a combination. There's a lot of speed to be gained from just what you have told us, but it comes in small pieces.
Best, WP