Need more info about tuning

Diocletian

I currently have the mods listed in my sig and I am interested in squeezing as much power I can get via a tune. After some research I am leaning more towards UpRev. I have located an UpRev tuner in my area(HP Logic) but I would like to hear some opinions here first from those who have had their car tuned.

What are the typical gains I can expect based on my mods(or similar mods)? Do you think it's worth the price(Looks like it's over $300)? Is there another tune that can get more gains(Cobb?)?

Also yes I will be dynoing the car and will make sure to check the AFR ratio.

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Injen Dual CAI | Illuminated Kick plates | Stillen Sway bar kit | F.I TDX w/ 12" Resonators | F.I HFC's | UpRev Tune | 300HP/225tq Mustang Dyno