Nitrous fuel pressue info needed

you should begin fat and see what it those read your plug!!!

mine is a nitrous work and like you didnt have alote of info
when I installed it.friend of mine was running a dry kit so couldnt help much
on mine but told me the same as I said to you fat doesnt break parts

with the CR. you have you must used race fuel
be sure its not at is limite of octane before opening the bottle
detonation kill engine thats why most beginner in nitrous broke there
engine

with mine I began at 7 psi was way to fat
lowering it 1/2 psi at the time and end up at 5.5
blew the heads gasket twice because I wasnt running enough octane
and hade detonation

hade a 360 @ 12.33 cr. with 125 shot
switch to pro fuel mark 2 http://www.speedwaybikes.com/sponsors/fuel.htm
and sunoco 110
http://www.racegas.com/fuel/1
never hade problem with this set up
also need to close the spark plug gap a little
went from 45 thousand to 35 thousand
i retard the timing 4*

in your case if you use the right fuel retard it 2* will be enough
like said 2* of retard for every 50 hp shot of nitrous

my 2 cents
Bob