Quote:
Originally Posted by bullitt5897
20psi is where you start to see issues. I have seen them crack as low as 21psi. Once your over 20psi it's not of matter of if but rather when it will crack. The highest I would run a stock manifold is 25psi and even then it's playing with fire.
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That low, huh? I guess my definition of "low boost" is miles away from some people.
