My home inspection of Speedmaster heads

TurboGLH said
Picked up two plugs, the ones I listed in my other post are longer than a standard plug. It's unmasked entirely. Plugs are installed finger tight, so it would get better after torque.

Autolight 5224 on the left , RC9YC on the right.

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Autolight

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RC9YC

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I'm just thinking those aren't the appropriate heat range for the head? I think there's a recommendation for a colder plug when using aluminum heads isn't there?...