i have checked the plugs, leads, and dizzy. Distributor was changed only a few months back as was dizzy and rotor arm. I will go and check the coil now but being a convertion, its quite hard to trace wires... i will check ecu too!! Fuel pump relay was brand new about 9months ago, how can i bridge it to see if it is that?

Because the car starts no problems and revs, but then cuts.