Quote Originally Posted by rsicard View Post
Dave:

When going from 2nd DRP to 4th DRP on the SBC engines, was it necessary to adjust fuel pressure or change injectors to a different size? Still seems like it would try to run very lean if the jumpers to MEMCAL and resistors WERE the only change. VE fuel map change? Any other changes?

Please advise. Thanks.

Rolly
I modified the .bin file (CHIP) for MPFI, installed the Memcal Jumper, removed the sense resistors and installed wire were the resistors were.

Maybe you can post the .bin file you modified for MPFI? I'm wondering if maybe there is something missing / not modified in your .bin file?

dave w