I'm not saying anything towards you or anyone, but the dyno graph and pc's in general can be made to show anything you want.From the BEST tuners on these cars, you only get 60-80 with an intake and tune.There has been a couple with 90 hp gains,but running a little to lean.
That being said, I can see a 50 hp jump in a tune,that has been done before.You have to lean it out to gain more power and what I'm saying is your a/f after tune is not leaned out.It runs in line with the stock tune.Ask anyone and they will tell you, when you see more power you usually see a leaner a/f ratio.
Second-Your corrected #'s are way low as well as you uncorrected(on the stock runs).I just now noticed it was dyno jet.Dyno jets in general show a higher # compared to mustang and other dynos.
Average loss on the gt500's are about 15% from motor to tires.So your #'s do seem low.
John Lund has been dealing with these cars for over 4 years now.
To raise power basically you have to raise the lean side of the a/f I dont see that in your sheet.So I still say something is wrong there.I think alot of gt500 owners and Evolution(Fred or Nelson),Mr. Lund,Jay Tucker,Justin and a few others that have worked with these cars for 4 years or longer, will tell you it just doesn't seem right.
I'm not trying to take away from your car at all.I had 2 and still have my 07.They are really nice cars and yours looks great.
Did your tuner save your stock tune? How will you ever load it back in the car if he didnt? I am trying to look out for a fellow gt500 owner, not rain on your parade.I hope you can see that.
