TOP GUIDELINES OF 4B12 INTAKE MANIFOLD

But If the exhaust is simply too substantial, ie: it's above 2.five inches bore, you'll get rid of an excessive amount of your flow charge and end up lacking energy and torque.Altering valve durations can alter the torque band and on most engines the exhaust and intake durations don't really need to match, Whilst most cams and tuners use matched pa