Unlike @AAIIIC when I installed my FAST 90/90 all those years ago, I sent mine away to Tony Mamo to be ported.
You can try and reach out to Tony, and see if he can give some advice:
www.mamomotorsports.com
GL !
-Chris
You can try and reach out to Tony, and see if he can give some advice:
HOME | mamomotorsports
GL !
-Chris