E38, 5.3 with Whipple 3.0, 235/250- 115 cam. Starts great, idles great at startup, after a little warmup, I revved it a few times and it went into surge city. When on 93 octane, it would drop to idle.
First log is immediately after filling with E85(71). Ends in 25.hpl. It was pretty rich---thought it would be lean with 85. At the end of the log, I stopped to turn off the scan and just as I stopped, it started surging.
I changed the VE table to lean it out and the second log (E85)is sitting on the rack in my garage. Refer to first sentence.
I thought I was thru with this---almost. Need to go to the track.
Thanks