popping sound out of right side

[8ball]

I put together a 427 for my 65 chevy truck. At idel the exhust sound out of the right bank has a little popping sound compared the the left side?

[1gary]

Alittle tight exhaust lash.

[rspears]

Can you share a little more about your build? What's your exhaust configuration? Crossover pipe or none? What's your advance at idle? Idle mixture set right, to the best vacuum assuming you're running a carb or carbs? How do your plugs look - consistent color on all or maybe one that's different? Gary may well be right on an exhaust valve being open a tad, but if you give more details, including what you've done so far someone may home in on the root cause if it's not valve lash.

[techinspector1]

exhaust leak

[1gary]

Sure enough Richard.Sometimes it the stuff right in front of you.