I got a 95 z28 no check eng light it does have a cold air on it and the hose from the exhaust is split dont know if it's causing problems but the problem I'm having is a rough idel and slow acceleration it's automatic but it's not launching the way it should now after 3000rpm it's fine any help would be great smells rich when you start thanks guys

 

Clarify what "hose from the exhaust" is split. Exhaust leaks before the O2 sensors can make it run rich and rough, reducing power.