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Q: I have an 03 R/T' it surges runs terrible sometimes,Fuel injector malfunction? on 2003 Dodge Dakota

OK, the truck doesn't run cosistently, it runs rough one second then smooths out for a while. It stutters and spits it also pops [backfires]through the throttle body too. sometimes very strongly. this is a lightly modified 360 and it has non stock fuel injectors on it. aftermarket headers,intake, and air cleaner. A mild cam also. I think it may be one or more fuel injectors but I don't have any experience with them just carbs. can anyone help?
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