I looked at the Penalty Box again, and I must have not used all my toes and stuff before, because it came out 13.1 not 12.1, so we are a little closer than I thought!!
My car runs pretty close to ideal times from Wallace Racing 60' to 1/4 Mile Calculator - Wallace Racing
If you believe the HEI is up to speed now then it is time to start tuning the carb. If you can drive around the water box and back in you won't drag water from the front tires to the starting line.