Predator Pre-loaded Tune or Custom Dyno tune, 99 SVT Cobra??

[BrutalMetal]

I have a 99 Cobra with a newly built motor and I don't intend on adding a power adder(NOS, Supercharger), the engine is bored .020 over with Forged Probe Pistons and Manley H Beam Rods, everything else(fuel system, intake etc..) is stock except a Densecharger cold air kit,off road H pipe and Catback kit.
Question will the 93 octane tune in the U7146 Predator be sufficient to get the most out of my computer or would a Dynotune from a DiabloSport dealer that has the correct software get me more HP? I'm aware that a custom tune can be downloaded into the Predator then transfered to the car? I see the tuner gives you the ability to see and adjust the Air fuel ratio in real time, so if I see the range at 11.5-12 would there be a need to shell out $200 for dyno runs if the gain is very little?
Also does anyone now if you can download a tune specific for the 32V Cobra motor from Diablosport since the U7146 covers a range of Mustangs, Thanks CJ

[sohfast94]

I would get it custom tuned given your situation.

[BrutalMetal]

Thanks for the recommendation Brainm, that's what I was leaning towards since my friend who bulit my motor is one of your dealers and tuners, Race Related in Florida. One more question would you suggest using the U7146 or the Black Revolution chip for the dyno tune download?
I can hold an extra tune on the Revo but the Predator helps with others aspects like code reading, fan temps etc.. Thanks CJ