I know this is a ba site. i have 2 triumphs. my question is about a suzuki bandit gsf600

The short
4 cvk keihin carbs 32mm
mains outer 2 - 102
mains inner 2 - 105
slowjets - 35
airbox gone due to mods
screws turned out 2.5
1 shim on the needle jet
all internal components clean and functioning
elevation 5000

will start with starter fluid and rev up and die

Prior to these settings it started and ran poorly after 2 years with outer mains at 100 and inner mains at 102 and screws turned out to 2.5. I have adjusted until i at a loss for a new thing to try. I'm hoping for a genius to save me.

Prior to this it ran at sea level with an airbox 100 outers 102 inners 2.5 turns out but this was 2 years ago.

any help is appreciated.