My own tests on piped ZDZ with race gas showed that it really was of no benifit.
-Best bet - get good pump gas - highest available - 93-91 - mix with with 32-1 syn - sweeten to taste- serve cold in a red can.
yum yum
and
futz with timing a bit if you really up the ante on pipe settings - this can increase cylinder pressures -just like a blower on a car.