I guess I'll answer myself. I found it at
http://www.telusplanet.net/~chichm/tech/lucas.pdf
It appears to be from an Austin America Automatic.
The curves are
2600rpm 15degrees
1000rpm 6.5degrees
500rpm 1.5 degrees
no advance under 350.
So it doesn't look too good for a B.
Paul Root wrote:
> After looking at a GRM article on MGB dyno tuning (February 2003). It
> made me think about the
> 25D dizzy I have in my garage. So I dug it out.
>
> I wanted to check the curves on it, so I went to the Teglerizer. But
> the model number
> doesn't appear in his chart.
>
> It's model number is 41220 A and 1068 4.
>
> Where can I find the curves on this. Would it be better than the 45DE
> w/pertronix?
> The article seems to say so. I'd put a pertronix on it eventually.
>
> Paul.
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