360 hp guess

I do have 1 5/8 headers and 2 1/2 ex. with magnaflow mufflers. If I got 375 hp I would be very happy. I will try both carbs at test n tune in april. hoping for 12s. Going in my dart 3.55s and 2800 stall with 235 60 15 drag radials. The track here is close to 1000 ft. so air is pretty good. Thanks for your replies.