Ok I've been experiencing some stubborn surging at cruise with my big cam lt1 (lunati 60123)as well as fluctuations in my afr. I've seen a few people bring up injector open timing? I'm really not familiar with a few things here. I know the injector timing is important when it comes to big ass cams like mine and what it means and all that junk but as far adjustments and how to I'm at a loss. I'm running tunerpro eehack scan9495 and trimalyzer for software. If anyone could educate me out here it'd be much appreciated.

Some info on the build. 355 11.6:1
Lunati 60123
Advertised Duration (Int/Exh): 294/302
Duration @ .050 (Int/Exh): 243/251
Gross Valve Lift (Int/Exh): .560/.565
LSA/ICL: 110/106
With 1.6rr (they came with the heads I know 1.5s are a better choice as are better heads)
36lb injectors
52mm tb
Longtubes y and muffler and dumped
Full emissions delete
SD tune by me (unfortunately)