Heads milled

sireland67 said

I know he ran them on his old duster drag car, on a stroked 318, the car ran consistent low 6's in the 1/8 30 years ago, with a little help from the blue bottle.

Now he is retired, the duster is long gone, and he just got a hemi cuda, caged, tubbed etc a week ago to play with.

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Oh yeah, they will raise compression, no doubt. They are quench heads now, which is good. But to say they are close chamber isn't correct, because of how the spark plug side of the chamber is open. I wish Mopar had made heads like that. Check out these big block Chevy closed chamber heads for comparison.