i am wanting to get input on how much nos is safe to use with out blowing it the hell up..i have a zex dry kit..using a zex filter..want to know if 55,65,75 would be best.this is what i have done..

b18a1 bottom end
82mm jdm itr oo pistons
acl race bearings
itr oil pump
gsr water pump
93 gsr head(mild port)
port flow dual valve springs
3 angle valve job
itr cams
JG race header
2 1/4 exhoust no cat into apexi n1
golden eagle 6an ls/vtec kit
CTR crank single belt pulley 1.8 lbs
ACT 8.8 flywheel
ACT extreme h025 pressure plate
act street/strip clutch
skunk 2 cam gears
skunk2 pro series intake manifold
b&m fuel set up
S1 close ratio tranny
obd0 pwo ecu (soon to be crome/ebr tuned)

motor runs great..has 262-265 psi in each cylinder.built correct and only has about 4 hours on it now..3 1/2 idleing.How much do you guys think this can take safe ?? This is a fully gutted 91 crx si..i mean fulley gutted race car..has drag radials also..i see alot of peaple using zex kits for years with no problems..just trying to get input...thanks guys for oyour time.....Nate