Quote:

Now, you're not going to get away with 12:1 compression on pump gas no matter what heads you run.


You can't read. I never said that you could run 12:1 on today's gas. Go back and look. I keep saying that using aluminum heads is NOT an advantage over iron heads on today's lower octane gas, whether they are BOTH 8:1, 10:1, or 12:1.
You just have a woody over aluminum heads without knowing why.