Tony,
listen to TC and ignore ac andy......
Good plan going with the stroked sb and Weber induction. What you lose in "idle lope," and you will, because IR induction systems try to smooth out the pulses, you will gain in other areas. Your engine will be more responsive at all rpm levels, even under a load like lugging the motor in 3rd or 4th gear. Throttle response is always there!! And when they're properly configured, don't worry about your motor running out of air.....
Mike