More cubes make a cam more driveable, simply because a larger engine can lose more low-end torque and still have lots left. I had a 283 that'd barely run below 3000 rpm, put the same cam,heads, intake in a 400 and it purred like a kitten full of cream.
For a street cam, less is more. You'll spend more time cruising and less cursing if your cam is a little tamer than the experts recommend. In your Deuce, more power than you'll have there will just spin the tires a few rpm faster, who'll notice?