i think its ok mate as we took out time puting it in ect . bill would my car be ok to run one of these as my pump has done 90k
3bar reggy should be used, and to check fuel pumps health a fuel gauge can be fitted to check the fuel pressure does not sag at all under load
the fuel pressure is rising rate regulator, so 3bar on atmospheric pressure, approx 2.5bar on idle with manifold vacuum, and under boost you should see 3bar + boost pressure on the fuel rail