I note the cast iron is often recommended in previous threads here and other Pontiac forums. Is the previously held assumption that aluminum runs cooler and provides a denser a/f charge than cast iron incorrect? Same with the benefit the air-gap in the RAIV when the heat crossover plate is not in use? How about taller dual plane intakes provide more torque than shorter ones due to ram tuning? There was also the belief in the benefit of no hot oil splashing on the bottom of manifold runners holding the a/f charge.
A great deal has changed in what works and what does not?
Last edited by Felix C; 03-05-2013 at 12:00 PM.
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