I bought a used 69 Mach III while I was in Gainesville. For $300. At first I'd kill the motor starting off at a light until I realized that I had to rev it to three grand just to keep it from stalling. If I really wanted to take off fast, five grand was more like it. Then you had to be sitting way forward to avoid wheelies. No low end torque, but when it got into the power band - hold on!