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I race 4x4 mud racing in the street stock class. I have to pull 15lbs intake vacuum on a small block dodge 360. What is the most modifications I can do without going under 15 lbs? right now i am very strong in this class but it wont last. Can you give me some advice? Thanks -clarence, delaware
It sounds like you're pulling the most vacuum you can, but there has to be other small things you can do to your motor to make it perform better without getting caught cheating. Remember, every fine adjustment can make a difference.
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