Does the use of exhaust heat block off plate's, lifter valley baffle work? Is there a insulting material that can be applied to the bottom of the intake manifold for a cooler air/ fuel mixture? I'm looking for budget performance modifications. Do carburetor heat shield's, carb spacers help performance.
Absolutely on all counts. The only "insulating" thing I am aware of for the lifter valley is the metal lifter tray. Of course with intake manifolds like the Air Gap, they are unnecessary.
