I am having some issues with my lly,engine is bone stock other than 4" from the down pipe back and edge juice with attitude. I am getting a surge/ lope at idle sometimes some light smoke. It seems to get worse as the truck warms up. I hardly notice when cold but as I get closer to running temp it shows its nasty face. I have read up and so far all signs point to FPR. None of the other threads say weather or not it progresses with warm up. Only other symptom I notice is when it gets warm and I get on it a bit it seems to "ping" a lot, sounds like a gas engine pinging. this has gotten worse slowly over the past year or so,lately is very pronounced, any help is much appreciated
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