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Originally Posted by Jeep383
Just installed a new cam and lifters into a chevy 383. Upon accelerations, a popping sound from the right headers. Doesn't occur during idle, and doesn't occur at speed, and doesn't occur when reving the engine in neutral or park - only when applying a load. Very conscientious about adjusting valves and following in structions. Spark plug wiring correct. Electrical? Readjust valve lash?
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The secondary side of the ignition should be checked over closely.
The valve adjustment is always a suspect when this happens, as well.
If the heads are new or have newly machined seats and valves, this may be the culprit. This will
sometimes go away w/time. You should do a compression test if the ignition passes muster.