Quote:
Originally Posted by KingLT1
I would like to see the tune file and a log of the run. I have a hard time believing that a healthy LT1 is going to let go on 8psi with correct tuning and fueling. Just because this shop is "reputable" doesn't mean a lot in 2019. In the event the tuner made a mistake, he likely won't admit it and eat the labor/parts to fix your stuff.
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This.
If others can make upwards of 800 with the same exact mechanical parts, yours can too. The only different factor is the tuner and how aggressive they are. It only has to take one detonation to lose a ringland. Little too much timing, little too lean, that's all it takes.