not sure if i should be worried, had a look to see if anyone had the same prob in the forum couldnt find anything.
just after starting my vz ss (l76 6spd model) i put my foot on the accelerator to a certain position when leaving, the revs will go up and the car would set off as normal but then the revs would cut out for a split second and then go back to the correct revs (like there is a fuel delivery issue or something) but this only happens when just warming up, this is annoying as i look like i cant drive for sh## when it cuts out but is fine after warmed up. (happens maybe twice in a row and not continuous). someone told me its normal as its a larger engine, but i havent heard any issues from anyone else.
although idle is a little rough regardless if its warmed up or not and may go down maybe a couple hundred revs every 6 seconds approx if i remember right.
due for a service soon, but its done it ever since ive had it, which is about 3 or 4 months.
Might be the o2 sensors starting to give up.
Have alook at the TPS as well.