70 dart swinger slant turbo build and mild restoration

Dunno Bill, i glanced at the thermal loss coefficiant of mild steel (not easy on a tablet) and it got my head spinning. Im not sure if the thermal loss can be calculated by looking at an intercoolers gains hp per degree. Maybe a thermocouple at each manifolds end to register degrees and use that data .Its just a theory but ultimately the velocity is going to hafe to factor heat, and the most constricted part of either manifold, which may very well be the turbo inlet itself. Ill actually wrap the pipe with header wrap to keep the beneficial heat in. I think we need to ask a nuclear propulsion engineer.....!