bad vibration/shake

[frosti108]

today after i got done rigging up a new intake for my car, i warmed it up and revved her out above 6k. when it got above 6, there was a horrible vibration/shaking. i was holding the shifter and it shook hella bad.

whats wrong with my car? could it be the flywheel or the clutch or something off balance?

[NIK90s13]

That's tough. Check your motor and tranny mounts first. Then if they are good, look into the clutch. That's what I would do.