Thinking of a procharger 6-9 psiUnless you have plans on running 8700 RPM, running a centri, or bouncing off the rev limiter like a jack rabbit, don't worry about it. Keep the boost around 10 - 11 lbs and have ball.
Also...
https://www.mustang6g.com/for:confused:ums/showthread.php?t=91846