Yup, way too big of runners, and way too much cam. Also, you've said nothing about ignition components or a distributor.... Personal preference, but I much prefer a vacuum secondary with an automatic transmission for street use. With a secondary spring kit and some jetting it is easy to match the timing of the secondaries opening with the stall of the converter and the cam coming in on the sweet spot. Double pumpers IMO work best with standard transmissions and/or on the drag strip where maximum performance is the issue and not driveability..... And a reminder, higher converter stall speeds in traffic increase tranny temperature, make sure you also install a good transmission fluid cooler....