Engine Performance problem
1991 Land Rover Discovery V8 Four Wheel Drive Manual 160000 miles
1991 petrol v8i discovery runs great then suddenly rough, hesitates and sometimes stalls. If I park up and uncouple electrics from MAF it will settle.I remove fuel pump fuse for a few seconds then replace, then replug the MAF and she runs. Until the next time! Every trip is Russian roulette. Big smell of petrol though- car has had new dist. Cap and leads/plugs /air fliter/etc. Like a mini in wet weather! HELP please.