ive just spent the last 2 hours or so starring at my engine bay going over every little thing i could see, and i spotted on 1 of the plugs to 1 of the coils was missing abit of insulation so i taped it up went for a drive, and it boosted fine to 9-10 psi.

still had a small hesitation but no where near as bad as before so it has marginally fixed the problem.

so now im gonna try bump the boost upto 14-15psi and see what happens.

cheerz,james