first ill tell the spec of my car then ill ask my question...

1.8zvh using standard unskimmed pistons and no decomp plate.(94 mondeo block)
(basically i didnt lower the compression at all)

stage 3 cvh head (ported and polished, big valve, kent cam)
pace double core intercooler , colllins 220 chip and huge actuator.
standard turbo, all other usual small stuff..

At what boost (if any) is it safe to run this car at considering the compression??????
And what power should it put out when set up????

 

not much i reckon without any lower compression