Okay went to the auto parts place, they sold me an inline electric pump for the equivalent of $33, got to the car and opened it, said it was for a car up to 2.5litres, so back into shop, small freak out, nope don't stock big pumps, will have to order from up country.
Anyway we may have dislodged the hose from the pump to the carb by accident when we cut a bit off on the carb side as it was split, so will check that out. On the same note, tried to start the Ranchero this morning, she only ran when petrol was poured in the carb, anyway checked out the fuel line, inline filter had split in half, must have wasted quite a few litres of petrol. I am tempted to replace everything to do with fuel lines on it, including the hose, I believe all hoses should be replaced about every 3 years or so.