Please help me with a few pointers and observations

restored from death 2012 Chevy Caprice PPV

105k miles

muffler delete and intake cone in stock housing

this will be my daily driver starting NOW... lol

I have followed many threads and created an alternative tune that starts and idles well but surges violently in gear. So I'm not posting that tune at this time unless requested

Here is the current tune and idling around the block for the first time :

E78_T76_0000.pld

bIG hAULERn.ctz