lol, are you kidding me dude...
its a tiny greddy turbo and he has the fuel
of course it depends on the cond of the motor and how good a tune it is
i would push 12lbs with the fuel he has, as long as your people know how to tune.. i dont know enough about e manage but with say hondata you would be fine
ive seen 15 on the stock motor
just because you see 8lbs doesnt mean its 8lbs from say variation of a t3/t4 its just a lil turbo
less cfms
doh
and a ls motor can take 20lbs on say a 14b, it all depends on which turbo
i ran 10.5lbs on my gsr stock bottom end, t3/t04b lots of fuel and hondata tuned, could of went to say 13 but i wanted it to last a long time
plus we had a cons tune on it
dont talk boost if your just going to tell him the wrong stuff