greddy profec b boost controller

[MR SUPRA T]

i have a uk spec supra with 105,000 on the clock - serviced properly and when needed

pls could you advise if my car is fine to push the boost up

mods on it are

hks induction kit

hks blow off valve

hks super dragger I exhaust system

hks idimium spark plug

fuel cutting defencer

and this new greddy profec b in car boost

i hear the car runs about 0.8 boost at 3000 rpms and on second turbo about 1.1

i have to be careful how i set my gain and what a set the boost levels to - i was advised 1.4 would be ok but 1.3 would be safer - can anyone with a similar set up help or anyone who knows about this sort of thing open ther gob PLEASE

 

GOD BLESS