.110 is typical and would do a better job than the .150 of controlling fuel at closed throttle situations where the mechanical pump pressure is going to hit maximum.
You may also need a set of bowl gaskets and maybe block gaskets. Whether the ones on there can be reused depends on what's on there and condition. I'd assume not. Holley blue gaskets work fine. Kill the sticky on them with a touch of WD-40 or such. Makes disassembly easier. 10 packs are much better buy than the typical 2 packs if you're going to be tuning etc.
Interface gasket material is harder and a lot of carb guys prefer that. If you buy from BLP that's prob what you'll get.
