Chevrolet Camaro 1967-2002 - 1998 z28 smoke?

I was driving with my friend today in his 98 z28 Camaro. It has longtube headers and other basic mods. The A/c is disconnected ( belt blew off, haven't had the time to fix that yet. ) While driving in LA we hit a bump on the road instantly smoke started coming in the cab , through the A/C vents . Smelt like burnt oil. I told him to shut it off asap we did , I then opened the hood and say seam/ smoke coming from the divers side header area, but could not tell where it was coming from. So I told him to drive to the nearest parking lot so we were not in the road . Parked the car the smoke was gone has not come back drove about another 10 miles on it still no issues :confused:

My idea is " the longtube header hit and opened up the header gasket for a few seconds and then closed , since his camaro is lowered.
I am no camaro expert by any means . Ideas would be greatly appreciated.

FYI did the normal checked for leaks drips lost of oil or coolant nothing not even a drop..

You sure it wasn't a pothole with water in it?

check all the fluids and see if hes low on anything. The only time ive ever had smoke come through the vents was from a heater core but it wasnt smoking under the hood. Like 6898camaross said, it mightve been a pothole with water. thatll do it. also check and see if something was burning on the headers.

check all the fluids and see if hes low on anything. The only time ive ever had smoke come through the vents was from a heater core but it wasnt smoking under the hood. Like 6898camaross said, it mightve been a pothole with water. thatll do it. also check and see if something was burning on the headers.

interesting you said heater core, what caused that to happen ? does the Camaro have a weak cabin filter if any? Drove it again today no problems what so ever :confused:

Sometimes when heater cores go bad smoke comes out of the vents but i think thats only when you have the blower running. I was just throwing stuff out there and after reading it again i dont think thats the issue unless you smell coolant, see or feel fluid on the carpet under the floor mats or have some slimy film on the windshield