07 2wd Trailblazer SS with LSA blower tune help

[TTTUNING]

truck is a 2007 Trailblazer SS with stock block and heads. bolted on a LSA blower with adapters and a ZL1 lid. NGK 7 plugs kooks 1 7/8 with Gibson exhaust, 4l80 swap circle D 2600 converter, 4 inch fender well intake with LS7 MAF. FIC 650 cc injectors and 450 fuel pump, CTSV heat exchanger pump with a aluminum front mount cooler. Problem is when in boost truck pings so we let off..been working with a tuner through email tunes and data logs. im being told by several different people that the tune is way off for timing and iat scaling and was looking for some advice. ill attach the files needed if someone could point me in the right direction as to a new tuner or not.

thanks

12.17.18fanmod.hpt
HPT Channels.Channels.xml
1-9 log sum WOT.hpl

[5FDP]

Where do I begin?

Your guy didn't even put in the new injector data. Still looks to have the factory injector flow rate. 650cc is only like 60-61lb/hr and if that is at 58psi, you are still under the 63lb/hr limit without doing the work around for larger injectors.

The VVE is not very good, it's not smooth. The 3D graph has huge dips in it and your commanded AFR to actual AFR is not close at all, often you are well over 1 full point leaner than commanded.

This tune is setup for speed density and is not using the MAF but you have a MAF sensor installed. Not sure why that is. You could also upgrade this to the 2 bar OS if you wanted too.

Timing curve is something special, it has negative values where you'd be in boost. Both high and low octane tables mirror each other, not good if you want the computer to pull timing when it knocks. Because right now it will knock, timing spikes down, timing comes back and knock spikes right back up. That along with fueling issues isn't helping.

To be frank, I don't think he has any idea what he is doing. Time to learn it yourself or take it somewhere else before it hurts the engine.