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The truck ran a 13.20 at the track on 150 shot and sprayed after it was rolling because chain is tranfer is popping also it was running on a set of escalade 22" wheels so not to bad

And as far as timing if i drive the truck around town normal it's fine it never dies but as soon as you drive it hard it wants to die and I can't figure it out

Yes it's running 103 at wide open the person who tuned it left it like that I'm not to good at tuning so j don't know if that's ok

I have attached two logs number 3 is full throttle and 5 is an idle log after running hard and just touching throttle but the thing is I can drive around everywhere and not have trouble with idle...

I will log today and post it it tonight thanks for the response I really need the help and if you could check the whole tune that would be great I'm new and just started trying to learn

i need help with my tune as no one has a dyno to tune it on it was street tuned by a tuner but the tune is not good at all. ive gone back 3 times with no luck its an 03 Silverado ss awd its a stock...