things to be aware

[nicku]

Hi guys,
My set up now is
Redtop
t28 ballbearing
nismo 555cc
PLX wideband
Safc2
walbro 255
and manual boost controller

Since I have the nismo 555cc injectors, I am planning to boost up to about 12 psi.
1. Right now my safc set up is -33% all across the board on the low throttle since I am at the stock boost. If I boost up to 12 psi, is there anything I should be aware of?

2. I am using the stock maf. I am just wondering with the larger injectors 555cc and stock maf, what would be the maxium boost on a stock internal redtop?

Thanks in advance