Breaking up issues under boost around 3800

[238ur50]

OK i know you guys are going to ask me a few questions

-what are my air/fuels well that are in the 10s around the time the car breaks up
-what boost levels the car breaks up in any boost as long as i am giving the car load it happens
-what are my plugs gapped at they are gapped at .028
-what is my timing the timing in the area varies from 30 to 16 depending on the boost level

ok the car idles and drive perfect if i stay below 3800 even if i floor it before 3800 it runs fine, but once the car gets to 3800 it like it hitting the rev limiter/launch control

well my rev limiter is at 6800 and i don't have the launch control hooked up

i hope you guys can help me
i am running 024 with the tfi mods

thanks
richie