Installed a ZIF socket to a 5.7 memcal. Makes prom swapping sooo much easier. Took a bit of finesse to solder in the socket, but it works! Tried disabling knock retard to at least eliminate a variable. No difference. Run quality seems to degrade about the same time ECM goes closed loop and BLMs are 150+. I am suspicious of the ebay pump now. I don't have a fuel pressure gauge, but I do have a NIB Delco pump I can swap. Will try running it with closed loop disabled to see if it makes a difference in run quality and verify P/Ns on the injectors to make sure they are 61lb. Engine came from someone with more tools than sense. Could there be something from the AT controls that could cause it to run like that? I know it effects DFCO, DFEL, and idle. The ECM does show that it is in 2nd gear all the time.
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