OK I have almost no mods besides exaust and soon intake. Im gonna keep ti this way for a while, while I break in the motor and perfect my manual driving on my stage 3 clutch. Would I benefit at all from installing an SAFC II? Im about to get one for cheap, would ti be worth it for me?

 

rarestrx gained about 10whp from his (maybe a few more?). he got up to 159 on stock ports (plus whatever other mods). it costs money to get it on the dyno, though; or to have a wideband in your car.

 

If the price is right - grab it.
Even with just a cheap narrow band AFR gauge you can lean your low throttle cruising tune & save gas.