When the rpm's rev up pretty high (doesn't matter if I the car is moving or not), then I put the car in neutral by pushing in the clutch, the RPM's come crashing downward to like 300, car shakes and feels like it's gonna stall, then the RPM's climb back up to normal idle level (600 RPM). What's up with this? I'm concerned one of these days the car is gonna stall or something.

BTW, I recently cleaned the TB with no luck. I have no CEL on right now. I do have a Short Ram Intake with a K&N air filter. Comments? Thanks!!

hey man, same thing is happening with my whip but i havent cleaned the throttle body yet. I dk what it could be besides that but it gets annoying.

sounds like it could be a vacuum leak, check the cables, make sure everything is on tight. have you installed anything recently?

maybve maf??? but I'm not too sure on that one.

Nope. haven't installed anything recently. I put the Intake on during the summer. That's it. I dont think the car did this before the intake, but how do I know if it's just a coincidence or not???