To Quench or Not to Quench?

I get what you're sayin. And when you posted the pics, I can certainly see where you may be able to get quench......but I'm tellin you, between the two heads you have pictured, the one that's not been milled is the best. Not saying you cannot make the milled one good. I am just telling you what Doug Dutra has said. If you visit slant six.org, look around. There are a lot of tech articles over there. The reason the later head is better has something to do with the filled in area under the plug. It gives sorta a "swirl" effect. At least that's my understanding. I'm interested to see what you come up with. I think anything would be an improvement over stock.

Oh and just so you know, you and your slant buildin woke me up. I went out in the shop and disassembled my bwoowack rockers yesterday and put them in the cleaner. I'm gonna call Gary myself and see what I can work out. Thanks. lol