reseting turbo actuator ????

[jonb1]

hello need some help please
ive just had a turbo actuator re diaphramed for a 125 ps 350 rwd transit & am wondering about checking & reseting the boost presure , can i check the presure on live data or do i need to couple up a vacum gauge if so does anyone no what presure & procedure is for doing this is please ?????

[John Grove]

I fitted a boost/vacuum gauge by drilling and tapping into my inlet manifold. 1/8" BSP. Boost varies up to about 10 to 15 psi on my 91 ambulance. John G