Hi Matt,
I have installed a 123/GB-4-R-V distributor on my supercharged 1969
MGB roadster. After I installed the Moss supercharger kit and a Sean
Brown flowspeed head, the advance curve on the original distributor,
as well as the Moss #143-110 I swapped in, didn't give good
performance. I tried the 123/GB, as opposed to the 123/MG, as the the
former has 16 arbitrary curves, whereas the latter has reproduced the
original curves of various MG models. After some trial and error, I've
settled on "curve 7," with a maximum advance of 300 at 4500 rpm, but a
very steep initial curve with 220 advance at 2000 rpm. This isn't
perfect, as I can't get my idle below 1100 rpm, but it really zips
from a standing start!
Don Laub
Burlington VT
supercharged 1969 MGB
On Mar 16, 2008, at 3:00 PM, Matt Milkevitch wrote:
> Does anyone have any first hand experience with the distributors
> produced by 123 ignition?(http://www.123ignition.nl/)
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