Electric Fuel Pump

I am considering fitting an electric fuel pump to my '87 X1/9 but am unsure of the spec required for my car.
There are numerous universal ones but I'm unsure if they will be suitable.
I have also looked at the Webcon WEP501 12v Universal Fuel Pump 5.0-9.0 PSI which runs at 0.34 - 0.62 bar with 90 - 130 litres per hour flow rate.
Any advise??

4 or 5 psi is what you need. However you need a pump that can reliably lift a vertical height of 0.7m as the X19 has a vertical tank. Check the specs of the Facet pumps, I think the red top is the correct Facet pump. You will also need a filter and ideally a regulator plus an inertia cut out switch to cut the fuel in case of an accident.

What about flow rate? Powerspark do a pump that is 4 - 5.5psi with a 26" lift. I'll look up Facet pump also.

It looks like the Powerspark pump will just be OK but check out Facet. Flow rate for a standard X19 isn't going to be an issue.