Wow, somethings not right.
Have you contacted Magnuson???
Did it come with bigger injectors? Might be starving for fuel.
My Vortec is giving me 460rwhp on my stock L99 with Corsa cat-back exhaust.
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Ordered 11/08/08....Del. 08/05/2009 Loving every minute of it! Don't hate me because i'm Pretty....
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