twin turbo 318 project

hi all,

new member here, new to mopar small blocks aswel
in oz he have the /6 hemi6 and of course sb and bb
i run a hemi6 in my ute and im building a twin turbo 318 for my race car.

motor is a 1970-71 block (possibly steel crank) havent stripped it yet
bores have a few marks so looking at goin 060 or 090 overbore
can anyone recommend pistons??

heres the gear i want to use
h beam rods and steel crank
hi volume oil pump and water pump
hi flowing heads
single plain intake
blow through carby - size 750cfm???
looking at block huggers to run into the turbos
looking at to4e turbos at maybe 14 psi (does that mean they each run at 7psi then combined its 14psi or do they both have to run at 14psi)
2 into one cooler
904 or 727 (dont know what parts ill need yet- any susgestions)
hi stall 3200??

any susgestions would be great, car is a light full chassis ute
cheers
Ash