Bench racing and jaw-boning had set us up with a lofty goal for our buddy Marko "The Rooster" and his 340 small-block. What started out as idle talk about building a 500-horse 340 while road tripping ...
This month, we bring our GM Performance Parts ZZ502 crate motor buildup to a close, with one last, final run at the dyno that ends with blistering performance, jaw-dropping dyno numbers, and a ...
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