This my set up 4x 720 stage 4 bnr turbo, walbro pump, sx fuel regulator , v spec front mount , 91 jspec rebuild with a large street port , 3in down pipe n1 exaust , i also have boost ,egt,air tofuel , water temp and oil pressure greddy gauges. I am planning to get a boost controller just not sure which one. Do u think the afc can handle this .

 

damn, you're gonna be running the same setup i will. i also have my doughts the SAFC will work well enough...

 

I think your better off personally with a after market EFI system like Haltech, or a MicroTech. The S-AFC is good until a certain point. If im not mistaken I believe it will not control the 720's in the primaries. In other words it wont get the 720's down to a certain level where they need to be in order to squirt enough fuel efficiently.
From another thread that I read it is not recomended to install 720's in the primaries due to the fact that they would be to much fuel at idle, so in other words the car would run pig rich, and will result in poor idle, as well as very bad MPG. Do a search, and you will find alot of threads in regards to the S-AFC. Also go to the ECU Forum, and check it out. Hope this helps.

 

I was running 4 650's on an SAFC II and was able to lean them down at idle