Re: i need more...
3.23 to 3.45 is not a worthwhile change as it is only just noticeable. I would not bother changing the gears unless you go to 3.55, 3.7 3.9 etc.
You can play with the auto a bit, higher stall and a shift kit to make it feel more sporty, but a manual conversion would get it off the line quick, and keep economy good, if not better then current.
As for porting, this will only help out at high rpm, so low end acceleration will probably not be helped too much… can actually end off worse then stock if porting of too wild.
Has the cam been dialed in? This can affect your power curve, and might be worth looking into.
Just my 2c
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