[rotorwrench]

Performance was good enough with the 4100. The only problem I had with them was with the secondary vacuum actuator diaphragm. The diaphragm parts available to me at the time didn't hold up well over time. I would have preferred a manually operated secondary due to that but when they worked, they worked well enough. My old 64 T-bird would git right on down the road in a hurry if I wanted it to.