E3 plugs are superior to champion plugs. Also upgrade your wires /coils to msd 8.5 mm cuper conductor or taylor wires. Going to royal purple in the whole powertrain, along with a lower operating temp thermostate will generate more pwoer. Standard operating temp on older rams 95-01 5.2, and 5.9 gas motors was 193 degrees. lower it to 160 will generate more power, also go to electronic fans vs. mechanical fans,
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