what is your opinion this combo?

Other than the x pipe I thought that you were talking about the combo that I built about 4 years ago. I ran almost that exact same combo and let me tell you what. Hang on. Cuz its gonna get you there now. Leaving in 2nd gear the car ran a 13.94 @ 104mph in the 1/4 with a 3.91 gear in my Duster. It was as good as you could get with that kind of motor to drive every day and I did. Great combo. I would run a single plane intake on that motor to help kill some of the bottom end and put a little more on the top. Have fun with it. I did.