I am wanting to be double sure on associated adjustments for an E38 ECM in a 2007 RCSB truck with a max IFR of 63.4922 (in V8). It will be running only on a 7# spring on the gate with no other external boost control. Fueling and timing will be no issue dialing in. I am just wanting to make sure I covered my basis when scaling injectors and the theory behind doing so as some people have different ways of manipulating the maps. Injectors are FIC 72lb/hr @ 58 PSI with good associated data.

I have seen where most just double Stoich and scale IFR Base by 50%. Will the Fueling and Spark grams per cylinder needs to be adapted as well as knock sensors?

Data used is within this link direct from FIC and FP is 58psi and boost referenced and MAF is now card style like the 2009+:
https://fuelinjectorclinic.com/GM-DATA/EFI-LIVE-0650