2 m5's.
im gunna add 1 more.
3 small nozzles > 2 larger nozzles in terms of better atomization before reaching the piston tops.
im able to run 23psi Comfortably on 91pump and dual m5 nozzles.
1 more nozzle should let me take it to 25psi on 91pump if i wished to do so...but i dont think i want ~460-470hp on pump...
