I just purchased 750cc injectors and a 9psi pulley for my comptech supercharger. I know that the AEM EMS is the best way to go right now but i am low on cash an only have a VAFC II. I was just wondering if you could run 750cc injecotrs with stock ecu.

 

You cannot run them on the stock ECU. Don't even think about running 9psi until you find a means to drive the 750's.

 

any other alternatives other than aem

 

Not really. Check this thread https://www.s2ki.com/forums/index.php?showtopic=376829