I initially had some surging when idling (8-900 rpm) in gear but that was because the mechanical timing curve was starting too soon. Reworking the distributor to have the curve start later (about 1200 rpm) while still being all in at about 2500 cured that. I find that works well even with what would be considered race only cams.

So I'd have to say that I had no streetability issues with the RA IV cam even with the low stall speed and 2.56 gears. Once the engine was warm, it accepted pretty well as much throttle as I felt like giving it without fuss.