Holley/Demon Carb stumble

1000cfm wow no this 408 is not needing that much cfm
The reason you my think it's lean is that i race at a 1/8 mile track that live at 6600 feet and air density is usualy beween 8500-9500 foot.
I richen it up when i go to lower elevations. 4400 feet is the lowest i have raced with this carb.
I have a good running car but its only a 600 DP i have remove the choke and ported(cleaned) the throat and installed the button on the butter fly for better air. and it worked real good. but the demon work just a little bit better.....until lately.

Do you see any thing wrong with the spray pattern????
I fill like there is a problem with the front pump.
When the throttle is whacked wide open it seam like it squirts less fuel then when i open it up a little bit slower. Thoughts??

Yes it its the 850 Might Demon