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Q:

upon accelration i loose power and get a bit of back fire idle is fine but on 1994 Dodge Ram 1500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
changed the map senson also had to remove the cat converter
(1) Answer
You say you removed the cat converter. What do you mean by this? It sounds like the cat is clogged causing vehicle not to run correctly. If you removed the cat and the car drives better that is definently your problem.