Originally Posted by smi1gj
with jb4 and dci only on 93 my best was 13.33
I put in 4 gal E85 to a full tank of 93 and ran 12.43 and 12.53
just keep on Map 5. 25% E85 will be fine with no headaches.
will there be any issues such as over heating? fuel issues, hpfp etc...