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EFI Backfire into intake - twin cam 88B

So could it just be my mapping causing this? Seems to run well when I hit it with a quick shot of carb cleaner to the intake but goes right back to the same thing once the shot is burned up. If this is the case what tuner should I go with. Sounds like a Power Commander or Race tuner from HD would be the way to go since I will most likely be changing cams and such down the road.
 
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