Edelbrock heads on a 340 with KB243 pistons

RustyRatRod said
It's not like quench is the end all be all. It's not going to add 50 horse power. I wouldn't give it another though if you're skiddish of the closed chambers. Run the open chamber and don't sweat it. The air flow is more important, IMO anyway.

That's exactly the conclusion I came to. I decided I didn't want to risk hard parts coming together for a better quench number.