OK guys I am unsure what injector sizes I should be using for my new setup. Its a streetported 6 port turbo with a megasquirt ems controlling fuel and spark. Im planning on running 10-12lbs of boost. Would 550's all around suffice or should I go with bigger secondaries?

 

stock turbo? I would say 550/720 should do it.

 

Go with larger secondaries. The 720CC units are a good choice as mentioned.