My 74 Swinger

So My car was running funny after putting in the new booster. We took it to the shop and they said ti needed hotter plugs so they put them in and then they re adjusted the carb and timing. Now it is making a funny sound when warmed up and at low rpms while driving. My dad said he thinks it is pinging. Could this be a possibility? If so, can I just adjust the timing to make this stop?