RySmDPT14

Honestly sounds like a lean spot. Depending on the dyno used to tune the truck it may have not been able to accurately hit the corresponding cell in which you are experiencing the stumble/popping. I always Finish my tune with a long road tune for that reason.

smokeshow

iTrader: (16)

I'd bet that it's not getting into power enrichment at that throttle position...

TXsilverado

iTrader: (19)

I'm not saying you shouldn't trust your tuner. I'm saying you may be hitting cells at part throttle that he didn't dial in on the dyno. A simple cruise with your tuner will probably cure the issue within 5 minutes.

1FastBrick

iTrader: (17)

Mostlekly the case.

JonToski187

Thanks for all the help guys. Here is a little bit better video of my issues. The shop is so busy and he does awesome builds like 1,000hp+ stuff I figure my little old 460hp build would be a cake walk. I was on hold for 30 minutes today before I gave up and hung up. Contacted the tuner on his personal facebook which he hates but I am running out of options and don't want to keep throwing money at it. It's already been like this for about 3 months should I be worried? I try and not to make it do it just every once in a while to see if it's still there. I don't want to burn up a valve.

JonToski187

Plugs were gapped correctly checked all of them anyways
Header temps with 600-650 of driver side and 550 on passenger side
The other things I still need to check

JonToski187

The dyno was a dynojet

JonToski187

To me it did seem worse in the winters and in the mornings in the Pacific Northwest of Washington State. Which is why I thought it was the tune in the first place but was told to replace plugs and wires

03sierraslt

iTrader: (22)

most likely, dyno tuning is not a substitute for street tuning. I’ve seen many dyno tunes drive like *** on the street because someone didn’t put in the time.

JonToski187

He did say he did a drivability tune that was the first thing I asked when I got it back because it was a daily driver? Should I worry about anything happening from this issue that you know of?