i built the motor with a 2 phase 900ss lightened and balanced crank into a 998 deep sump cases.
stock pistons were milled to get the deck height correct leaving the center raised to gain more compression.
a combination of the piston modifications skimmimg the heads and the extra stroke gives a measured compression of 14.1
own port work on heads and r cams so 150 or more hp is in reach...
just a normal modified 748 ecu and loom running the 999 throttle bodies..
if you want pics pm me your e mail..