Best advice, Get rid of that pos SAFC. The SAFC is for basic street model cars with mild mods who want to bump up or tune out the ratio a bit. You NEED a real fully mapable ecu, if you don't your car will eventually detonate. Spend the money and get what I have (It is the most common for 3rd gens) Apexi Power FC with the commander preferably.
Also you might have thrown a seal, do a compression test if your under 100 on any of the faces your engine might be going. Messing with fuel ratio settings is a very dangerious thing on an rx7.