92 gsx cuts at 4500rpm???

[harzy7]

car runs great befor and after that rpm but the boost jumps all over the place and studders right there for a second it runs great has a 35r fp mani its literally right after the car is achieving full boost any help guys id appreciate it! thank you!
even if I slowly go past that rpm it still does it I have checked plug gap diff coils and plug wires?
built 6 bolt as well with fp cams any help would be great again thanks!

 

[Vdubzr32]

Post a log of the issue. Update ur vehicle information mod list. And someone would be able to help.