LTBALTBMX

When I blip the throttle to 2.5k the revs drop after I get off throttle to about 400 rpm (feels like car is about to die but doesn't) then it bumps itself up back to about 850 rpm.

I drove it for a bit as well today and it feels like the engine dies really easily when backing up (compared to my 09 LT). I do admit however that I haven't driven for a while and it could be me not being used to the car.

Is this normal?