If you have a JG bowl, you can put a wedge ring between the bowl and nozzle assy.It's 4 degree up,or put two rings ,eqals 8 degree up.However with two rings you will have to enlarge the boltholes to mount the nozzle assy,because of the steep angle.You could also file the upper part of the nozzle stop,but don't exceed the travel too much to expose the White Plastic "O" ring, or blowby will result.Good luck