Any suggestions on how to get these out? They are the 3/8" square plugs. I've tried everything I can think of with little to no progress. My problem is that I can't get any wrench, vice grip, crescent wrench, or anything else square enough to the plug to get any kind of effective torque on it. I sprayed one with WD-40 about two hours ago, but it hasn't helped any. I may have to leave them for when I take the car in to have the HGs replaced. But I don't know when that'll be exactly as I'm trying to hunt down a pair of ported heads too and won't bring the car in until I have the ported heads in my possession. Any leads on ported heads would be appreciated too!
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