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Yes and no.

More fuel keeps cylinder temperatures down and slows the burn. Ultimately it's about cylinder pressure, there is an optimum point to achieve maximum cylinder pressure to get the maximum power from the combustion event (the air fuel mix does not explode, it burns). The thing you have to remember is you are dealing with a stock ecotec engine which has reasonably weak pistons so you don't want to much cylinder pressure or heat with stock ring gaps and things will go bad fast. To much heat will cause the rings to butt up and lift a ring land. Don't run to much boost at low rpm or to much timing or it will end badly.

So found a issue with the tune that's been causing me drama injector min pulse width I think it's called is way out had to guess injector info anyway is set to 45.01ms from memory should be like 0.35 or smaller will have play today

Ohhh quick question I have a failing 02 sensor bank one can I just put bank 2 sensor in bank one and turn off bank 2 thanks guys