no, i have bbks and they NEVER glowed....But as an idea, check your spark. I had put my brother's wires on wrong on his fox stang, i had used a non-ho firing order and it ran like crap and the headers glowed.
For you, if its not that, then certainally check your timing.....then your wires coil and plugs, because it seems you may be getting unburnt fuel into your headers?.....Or maby its a lean condition.