Another "recommend a cylinder head?" thread!

The OP needs to post up the other specs like cam timing, carb and carb settings, ignition timing etc. Uless it's posted somewhere else.

His CR is not outrageous. Getting quench won't help. Opening up the quench won't hurt it. Use a gasket like RF said.

But I think you need to look elsewhere, even if it requires a cam change. That's not much more than a gasket change and you can get more performance.

What's the car weigh? What trans? What gears? All that effects tune up and how much timing you run. If you are running a vacuum advance it probably needs to go. I have never been successful running a VA with that CR and getting it to work.

Much more to look at and care about than quench. That isn't your issue.