Lean under load

[travis]

good threand tons of help
i am having a lean in closed loop condition also
o2 jumps around alot
im sorta new got ve all dialed in
thinking mybe my fuel pounds per hr is odd stock 94 gmc 1500 wit a vortek and atfter marke fuel pump and regulator 2 25 psi set it to 85 pounds it pings when i am unber load map about 70 to 100 any suggestions

[dave w]

Can you post a data log, and post a .bin file?

dave w