Hello all

I have got a issue with my escort cos after about 5 mins of running it starts to run really lumpy and wont rev past 4500 revs and it gets worse and worse until it wont rev past 1000 revs the only way to discribe it is it feels like someone pinchin the fuel lines , But if u turn it off and wait for 20 seconds it goes back to nornal for 5 mins then it starts to play up again .

Has anybody got any ideas it's driving me mad ??