Help finding custom tuner 2023 5.3 whipple base tuned now

Hello, new to forum. So I have a 2023 Tahoe 5.3 with the whipple supplied tune and a cat back system. I much enjoyed at first knew I want more. It has an unlocked pcm from HP and I am able to map it and send it to whoever is capable. I want to add headers, injectors, new pulley, cam etc. I don?t know where to being honestly. Thank you for any advice.

You're wanting to find somewhere to install those parts and tune it? Or just looking for tuning assistance after those parts are installed?
We can assist with tuning the vehicle. There's a few things that need to be added to it to tune it correctly now that it has the whipple, but nothing crazy or hard to do.