Hi Guys, apologies for the late reply. Managed to get the fuel pressure gauge hooked up this arvo. Intially it reads 1.5 psi at idling. However, it drops to 1 whenever I gave it a rev. I discovered puddle of fuel sitting on top of one of the reservoir. Symptom persist after fuel line to reservoir was replaced suspect hairline crack due to ageing. The rubber seal does appear to be squeezed by comparing to the other one.
I'm tempted to replace the seal but before I go down that path, I though I would like to gather more info from here.
Cheers.