those injectors look like they'll work? do you have them already?
make sure you get injector clips too.. as your stock ones don't usually fit aftermarket injectors
rx7 550cc low imp injectors bolt straight in... just make sure you get them flowtested and cleaned (if second hand) to ensure efficiency and that they all actually do work
lol.. manifold not finished yet.. still getting the intake runners made up
will post pics as soon as it's finished