Torque Converter

[macx]

With that cam, your peak torque should be around 4 to 4200? If so, you want your converter to kick in just where your torque starts getting into the fat part of the curve, otherwise you're wasting torque / acceleration. Especially if you consider street use more than occasionally, that probably puts you into a 2500 to 3000 max converter. Precision converters do have a good reputation.