so i have an hss set up and my when i switch to hum to my single coil the single coil sound kinda weak. im still pretty noobish and i really know if im asking the right question but how do "boost" my single coil?
Thats just the way single coils are, they typically have less output than humbuckers. You could replace the single coils with higher output ones, that would help to reduce the difference in volume when you switch.
I use one of these in my HSS in the neck position. There's still a bit of a volume drop but it's quite manageable. Look into some mini-humbuckers.