The engine has just been put in the car, it was drained, sump off, strainer checked and put back together, the pump has apparently done 6000 miles, the new oil is 9.2Litres of Mobil 15w50, (big wing).
The stack dash shows between 9psi and 10psi, i connected a mechanical gauge and its showing 10-11psi.

Could try the pump but i think it will BE A LOST CAUSE, i think i know why the seller sold it on, i paid good money as well and im heart broken