car not running, crack them both (dont take the screws out, just loosen them several turns), add coolant slowly, and close each as a steady flow of coolant starts to come out. then start your car, pour in coolant as its running till its full, close the cap. fill your coolant res to the 'hot' line.
it's also worth mentioning that even if you screw up the bleed screws or dont want to use them, you can just add coolant, start car, shut off car, wait, add coolant, and repeat
eventually you will get it full
the only reason for all this nonsense is that the coolant flows in reverse; so instead of pushing coolant up through the block, it's pushing it down through the head, so it has a lot of trouble evacuating air on its own.
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