horsepower barrier. At 405 horsepower, the LS6 will match the highest peak horsepower level of the legendary LT5, which powered the ZR1."
At the front, air enters the air cleaner housing through an opening that is approximately 6.65 square inches larger than last year. The new MAF no longer has the pre-sensor grid work known as air channels, so the air flows less restricted through the MAF and into the intake manifold.
The new cam profile, which opens both the intake and exhaust valves an additional .7mm, is the greatest contributor

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