I'm running fic blue demon 36lb injectors had same issue fic was no help. Issue I'd been having was cruise drivability bucking and the afr bouncing a lot. granted I have a pretty big cam. But idle and fire up have been no issue. I'm running sd because I was having issues with maf tuning with my 110 LSA but I've got it pretty close now in sd without changing my adder thanks to trimalyzer. Still think there's more room for improvement there though. But what you're saying is you zeroed yours out? Think I should go back to my base tune zero them out and start over?