After patiently waiting 11+ years, I decided to go with the SST. I previously ran the Keisler 5 summers from 2000-2004 in the '71 and it never missed a beat. It arrived at my house 6 days after ordering it, additional bell housing, clutch/pressure plate assy, etc...... and on top of it, saved myself $2200. The car is going back together this fall.