your thoughts on a street cam

I would think with a 4 speed you would go bigger than automatic. The rule I've always heard is what you run in an automatic, you run one step (5* duration) bigger in a manual. As they generally live at higher RPM. I would think you wouldn't see loss of torque until past the 230 mark. And even then, you wouldn't notice it. We'd be talking maybe 5 ft lbs kinda thing.