depends on how you are planning to run it. Some people run two lines to the manifold.
I chose to run mine this way....One line to the manifold one line to the bottom of the headpipe. The two fittings on the head go directly to pissers. The top of the headpipe goes to a t-fitting where one line goes to the stinger and the other goes to a pisser (or up the handpole and onto my hands
).
I have my screws at bottom barely cracked, middle closed, top 1/4 turn.
Factory pipe jets with the exception of a 2.0 needle and seat