Frank Lupo, of Dynamic Converters, has been involved with Project Six Pack since he was a kid. His latest revision of the torque converter added an extra 400 to 500 rpm to the "flash." (This is the maximum rpm that the converter reaches when hammered to the floor at about 10 miles per hour in high gear). At high altitude, it's not uncommon for a converter to lose 1,000 to 1,500 rpm from its sea-level performance. We may add more rpm next season, but even this change made a big difference off the line.