Anyone install Edlebrock aluminum heads ?

If you do a compression test you could get and idea about what direction to go. If you have dished pistons or pistons down in the bore you will see a low cranking pressure. If you only have 120 pounds of compression you will want to get that up. But if you have 165 or more you won't want to go much higher with iron heads. If you are changing to aluminum heads you need your cylinder pressure up to make power due to the heat transfer. Heat=Pressure=power.
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