Ill be running edelbrock intake 6061 elbow stage 3 heads aftermarket cam(Hitech stage 2 na cam or bullet raceing custom cam). Will 42lb injectors be to big. What size does everyone recommend. Also plan on running lightning mass air what is all needed. My intake is 3in and lightning mass air is 4in so do i just buy a coupler and call it good or go to 4in pipe and all. Thanks for the help.