GM 350 Crate Engine Build V - The Goodwrench Quest, Part V
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Among the pieces we tried that didn’t work was this phenolic 1-inch spacer that should have increased top-end power but instead resulted in a massive power wheeze throughout the entire rpm band. The results were so bad, we didn’t even try to tune around it. In our application, it’s obvious the Performer RPM intake didn’t like the spacer. View Related Article
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