I am planning on running higher boost in about 6 months and I want to do this correctly. I'm planning on going from 6.5 to 9 with an front mount and walbro pump and then going with 13 with 300 zx injectors what are your suggestions on which is the best piggy back computer. I've heard the greddy e-manage and the safc 2 which one is better and is there anything else out there that would be better for best tunability. also does the safc control timing?

 

SAFC will only fine tune your fuel. If you want to retard the timing then you need the J&S Safegaurd unit.

Dixit