That's the one I use, it's very accurate and takes many of the minor contributors into account.
I'd like Ponchojoe to walk us through how he got 9.6 compression with 670 heads on a 455.
Like I said earlier, even with a 18cc dish that's going to be north of 10 compression. 10:1 compression, iron heads, the pistons more than .015" below deck and a small cam on a 110LSA is going to be a tall order on pump gas.
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I could explain all this to the girl at the parts store, but she'd probably call the asylum.
White '67 LeMans 407/TH350/Ford 3.89... RIP
Red '67 LeMans. 407/TH400/Ford 3.25
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