What a difference & turbo question?

[CJ_Derv]

Hey all, got round to changing oil and filter and fuel filter today what a difference changing 2year old semi synthetic oil and filter to fully synthetic and new filter makes. Cant believe the difference now the sludge has been changed

I had a tinker with the lucas til bosch is goin on and turned max fuell to max, and adjusted compensator with anstronger spring from another pump but cant boost past 18/19 psi as when ive looked at the turbo and tried an allen key in the ex owner has bastard rounded it off :S so cant turn it up anymore and want to as has FMIC and smokes a but still on boost so enough fuel for some more boost....any ideas how to get more boost without plan B which is to take off and weld wastegate shut as cba lol

Cheers