yeah it kicks in around 7 psi I was told. The only problem being that it is a cold start injector from another ford so it does not flow as much fuel as cossie green or equivalent.
I am trying to make up a manifold to take a fezzie blue injector first (cause i got a couple lying about) then I am gonna look into other ways.
Would there be any benifit in having 2 fuel pumps and maybe rewiring the fuel pump as I have seen a few cossie boys on here do???