I have pt-51, 3in thdp, msd 50's, walbro 340 pump, and 3200 vigilantie converter. The car has 112,000 miles on it. With 100 octane chip, 110 leaded fuel and 23 pounds of boost, I went 12.4 with 2.1 60 foot at 112 mph with dump open. I am getting a race chip and some et streets and hope for 12.2-12.0 range.
Joe