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Discussion Starter · #1 ·
i have seen plenum spacers for vortec 5.7's and the theory with them is that it enlongates the intake runers. which makes more torque (this is true) but iv never seen on a intake like this to tell if there even worth it as i have the vortec 7.4 and they do not make one that i can find, but if there is that much of a torque increase from this modification i would like to have one made out of a chunk of aluminum or a poly plastic type substance.
 
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