works out about the same, a little more dicking about.. but you'll have spark for days and easily run 0.8mm gap without any misfire at like 20+ psi.
I got a mate who runs them on his SR20 and putting 25psi through the motor and he runs his gap at 0.8mm errday
With Splitfires they tend to break down if you run 0.8mm at 20+ psi and with more dwell in them they will run ok till they overheat and start misfiring a little time later.