OK small update here.
rob is looking at my ecu at the moment as it wasnt triggering the fuel pump on any of the p259 channels.
in the mean time I got hold of a stock rover injection system and fitted it as i needed the car running.
Had exactly the same problem, the car would run for a few seconds then stop, or not run at all, and kept flooding.
however, today I solved the problem, it turns out I had the wrong spark plugs (too short), fitted which is why she wouldnt fire. Put some new ones in and it runs really well on the stock system.
fingers crossed when i get my VEMs back and plug it all in it will also work.
Watch this space.
Stuball