[70BAYCHEV]

hey guys so i got a real loud poping noise at idle evry 2seconds or so.. i juz put new headers and 3 chamber flows... i checked the timing and sparkplug wires for any miss fire but was all good.. my cuzin says its sucking in air thru the exhaust system.. is there a lil trick or anything to find the leak because i couldnt find it...

 

[Malibu70]

an exhaust valve stuck open, or perhaps a weak spark in one cylinder allowing unburned fuel to be dumped into the exhaust, where it ignites.

what displacement is the engine and what diameter header tube?

 

[BULKSS]

My car has the same poping noise ( Pipe to collector leak that needs welding) anyways try having someone hold something over the tailpipe briefly. Then look around the noise at the leak should be more obvious this way.