I did the same thing with my 2016 Tahoe. The only difference is I went with an HP tune that TSP recommended and I installed a new high flow oil pump that was recommended also. Switch out that GM oil pump for a Melling high volume oil pump and see if that solves the issue.
I would just go with the stage 1 sfm/dod delete cam from texas speed. I have that same cam installed in my 2016 chevy tahoe and it runs stronger than before. Didn't have to do a stall converter and I used a HP tune also. In the future long tube headers are going to get put on also. If you're...
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