2010 Silverado 408 stroker tune

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Hello all;
I have built a 408 Stroker for my 10 Silverado LTZ 4x4 to replace the stock 5.3. But before I drop it in I want to be ready with a tune. Would it be better to use a 6.0 L96 stock tune for a baseline or use a same year 6.2 1500 tune to start with? Or would I be better off getting a mail order tune to start with?
I am using a 2013 L96 iron block with Square port heads and Intake with 50lb injectors.
Engine is all forged with 11:0-1 comp, AFM Delete, Retained the Variable cam timing for towing and flat torque curve. Comp cams XFI RPM Hi-Lift Hydraulic Roller Camshaft
GM LS, GEN IV (Single-Bolt)
Lift: .556"/.568"
Duration: 263°/277°
Lobe Separation Angle: 114°
RPM Range: 1300-6500
Used the comp cams 20* limiter block in the phaser.
.580 lift springs and roller rockers.
6L80E stock converter. Headers and cold air intake.
Any Suggestions would be helpful.
Thanks In Advance.

[kevin87turbot]

Use the same year 6.2L tune to start with. It'll have all of the correct injector characterization data.
I'll attach a stock tune file.

2010cadillacescalade62Loldginstock.hpt

I've done a bunch of these. It's pretty straight-forward.

Kevin

[[email protected]]

Thanks so much for the help.