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Here is our mule: a 355ci small-block Chevy. It's basically a GM ZZ4 crate motor with Vortec iron heads, COMP Cams XE-274 hydraulic flat-tappet cam, Weiand Air Strike air-gap-style intake manifold, and Holley 750-cfm Street HP carburetor. It has a pump-gas-friendly, ping-free, 10:1 compression ratio. View Related Article
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