Mailbag: How to Get 440+ Horsepower from a Chevy 400
Got questions? We’ve got the answers—the Summit Racing tech department tackles your automotive-related conundrums. Last week, we helped a reader make around 400 horsepower with their Chevrolet 400 small block engine. This week, we’ve decided to take the same question and turn things up a notch with ingredients to make 440-460 horsepower. Once again, the
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