in need of more educated personal to review my tune! Im new with hp tuners!

2002 Silverado with 09 Tahoe 5.3 howards rattler cam .525 lift 282/275 duration ls6 valve springs.
seems to run better now that I put the timing advanced no higher then 32 degrees. also the truck has been previously tuned from somebody else for stock engine so if anything looks way off please inform me. but the issues im having is idle drops low and surges when coming to stop sign fast and I feel im lacking power in higher rpms I feel it should be more!
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Your VE and MAF table needs adjusted. On your Log, the computer is trying to add 10% fuel in the upper rpm range.