TorqStorm Supercharger build advice needed
Let's not forget this boosted six is pushing a W-series truck, the heat-load is going to be higher than an a-body, I honestly wouldn't do this w/o forged slugs. The cooling system should also be the best available, which should be easy for a truck app.
Although I hate E85 for NA use, I'd seriously consider it for boosted apps, especially this one. Obviously alcohol compatible component selection & moisture control needs to be considered.