440cc's from 220's should be within the range of AFC adjustment. I would worry about the AFC not having enough adjustment points though. At 22psi, I would want as much adjustability as possible.

For my car, I went w/ the emanage to control 660cc injectors (stock was 254cc). Most guys I know w/ AFC's swap out for something more tunable as they run more power.

Quote Originally Posted by SwiftGTiRacer
I always thought the SAFC takes the output from the ECU, and increases it according to the MAF's output but letting the ECU run stock signalling.

Swifty