Jerry,
You don’t mention that both the headers and the factory manifold will get HOT no matter what heat riser you use. That heat is essentially directly below the intake and will warm the intake by ? ? ? is CONVECTION the right word? So I’m sorta curious as to what the IDEAL temperature for an inline intake would be? I seem to think the R&D department decided that “too hot” was bad, so they designed the heat riser to close so it would limit heat exchange after the engine was up to temp.
