540slant6 said

Interested. The commando is the higher comp 273 which is 9.2:1? Same as 67 spec 318 I believe?

Thanks

Nick

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pishta said

Not if its a 4bbl, itll have the "10.5:1" pop up pistons with 2 valve reliefs. 67 318 was a lower 9.2 compression, but only had 5hp less.

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