Are 680cc injectors and a Walbro 255 sufficient for a 272/272 cam setup on the stock MAF with an EcuTek flash running the show on 91 octane CA urine? If so is that setup robust enough to add something like a 20G IX, GT3071, or TME 6.5 down the line. Again...all plans are to stay on pump and the factory MAF setup.

 

They should be enough for a 20g/tme. Also I think they are more then enough for a bolt on car, I think most people accually stay with the stock injectors. That is the same setup I have(or will have once my injectors get here tomorrow).

 

Even if you had a GT35R, you won't make enough power on pump fuel to grow out of 680cc injectors.

 

I have basically the same setup as you and im gonna be getting 680's in a few weeks. Ams told me that they would be fine for what i have.

 

Thanks fellas.