I'm almost done turboing my 240. I'm running a safc 2 and I only have one main problem. When I start it up, it will idle fine and then die... But then if you hold your foot on the gas at like 2k rpms, it'll stay there for like 3 seconds and then try to die... unless you pump the pedal it will die.

Any ideas?

 

something not wired in right or that is what it sounds like how long have you had the SAFC installed for? If everything is wired fine then maybe fuel filter or if you are using bigger injectors could be the fuel pump. Just start troubleshooting