Originally Posted by mtcb
I don't think so, but not sure I know the difference. A lot of popping sound during deceleration. I get the same annoying sound at around 50mph. If it helps, the stock setup ran just fine with good throttle response, acceleration, and no backfiring.
I can't speak specifically to a 216 but the condition you mention is common with motorcycles that have had high flow exhaust installed without also adding a larger jet to the carb. The cause on a bike is a lean condition. I suspect it's the same issue with your truck. Restrict the exhaust or up the fuel input and your popping might go away.

A short read on the issue I referred to.

Last edited by Tiny; 07/11/2012 6:58 PM.
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