Shot you a message in your thread, but I'll add it here for posterity. My setup is a US 3.0 SC with 964 cams, Triumph ITBs from Clay, Toyota COPs, Bosch 31lb injectors being run from Microsquirt EFI in wasted spark.
Velocity stacks are from a Yamaha XS650, they have internal mesh screens and stay in place via 3 set screws each. I also have Filterwears velocity stack pre-filters to help keep out water. Additionally, I'm not running a catch can but trying out an air breather filter with its own Filterwears pre-filter, we'll see how it goes.
