[KingLT1]

No...The lambda AFR needs to be brought down to .82 regardless or you will be putting pistons in that thing before the first oil change on the Procharger.

Imho these Supercharger companies intentionally run on the lean side with canned tunes because of how close the stock fuel system is to it's limits. I assume their theory is that running on the lean side is better then running out of fuel even though neither is correct.

What these supercharger companies need to do is quit offering these base systems with a canned tune on stock fueling. They should be including LT4 fuel system and a "base" calibration file to get the setup running....followed by a disclaimer that the tune be finished or verified by a competent tuner.

The reason why they don't is because it would cost them sales. The idea of being able to install a supercharger in your garage in 5-6hrs, flash tune, and go flog your dolphin appeals to the masses. When the reality is that very seldom is it every that easy.

This isn't the platform to cut corners on with boost. Ideally we need more octane and cylinder cooling to run boost on this high compression engine with tight ring gaps. 93 octane can be done on low boost but I would error on the richer side .80 to help cool. I can't confirm 100% but I don't thing the stock fuel system can keep up at that Lambda. A lot will depending on temp, elevation, and boost the engine is making. I haven't tuned a stock fuel system boost car because I refuse too. lol