Newbie needs help
The pump might do it. With your mods and the 100 shot I believe you are at the limit. Did you happen to watch your fuel psi when you where spraying? If your low the new pump could bring it back up and put your A/F's closer to 13.0.
Also, do a seach for the couple of new post that went up about a few guys using MAF tables to see when the dry is flowing and they richen up just that part a little and pull some timing while being able to keep a good NA tune. 383LQ4SS has been giving updates and results on this.
Hope this helps a little. I'm shure others will jump in also.
Should be able to help you out a little.

