craig ya got greys yes , ported head too yes , mine holding 26 and a halp psi ( dont tell stu he said turn its down, stu if ya reading im lying , honest !)

surely greys, ported head ya will want 30psi maybe even 32psi , whats the point in having greys otherwise


sell the greys and buy greens or run more boost , offer on yellows still stands btw