bbcwby wrote on 06/13/19 at 08:57:58:ok everyone here is what has been done, screaming eagle exhaust, timing chain update, ryca k&n filter...
Don't know about the exhaust.
Timing chain might have been installed wrong...timing is off.
Some filters block the airports at the intake.
If you slide shows signs of wear, it could be sticking which causes a very lean condition. The butterfly valve at the front of the carb opens allowing more air into the engine which creates more vacuum, which SHOULD raise the needle/slide allowing more fuel to mix with the air flowing through the carb. If that side sticks, you get a lot of air with very little fuel.
It's hard to say without knowing the history of how it ran, how many of those mods were done at once, etc