During one of our never-ending technical discussions, Jim Grubbs at Jim Grubbs Motorsports (JGM) suggested that we take a look at the flow difference between 30- and 45-degree valve seats. While ...
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. DUQUESNE, Pa. (WJW) — A car rested at what ...
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