Exhaust backfire/popping

[slow-1]

Originally Posted by dzwestwindsor

Could this be an ignition timing issue? Sometimes when I turn the key off, it would run roughly for an additional second or so. And when I step on the gas, there is a little more than half a second of lag before I get any power. This is the first carbureted vehicle I've owned, so I'm not sure if these symptoms are normal or not...

Could be, check to make sure the vacuum and mechanical advances are working correctly. After 30 or 40 years, sometimes things need a little help.