[blown 68]

so, i have seen multiple theories, and maybe they are all correct. glowing headers: lean? rich? retarded timing? all of the above?

just curious, mine will glow at a high idle,(1800rpm or higher), with a 12.5 or 13.00 to 1 a/f ratio, 22 degrees initial,(blower motor, no vacuum adv. slow kick in to 30 degrees total by 3300rpm). doesn't seem 'lean', doesn't seem 'retarded', maybe too rich? don't know, just for fun, any guesses????????? always wondered.............

i thought it was from being lean, but she seems to run a little rich, so i wonder.................

davey