I think you have it hooked up to the wrong port. The AFB's have
three vacuum ports on the front face. The two larger ones (left and
center) are full vacuum, the right one is timed. Try the timed port.
Dan Jones
> I have a Mallory Dual Point distributor and a Hyfire IIa system on my
> Edelbrock 1404 equipped but otherwise stock SD1 V8. I have the vacuum
> advance ported to the takeoff on the throttle cable side of the carb which
> I
> think is the "non-emissions" side. This seems to advance the engine way,
> way up. If, for example, with the vacuum advance disconnected and the
> port
> plugged I set the engine to TDC, the timing will be advanced all the way
> to
> about 11 BTDC when the vacuum advance is reattached. This seems like a
> lot
> to me. If I were to set the timing to 6 BTDC, the indicator would be off
> the scale when I reattached the vacuum line to the distributor.
>
> Does this sound normal? How would you set up the timing on this car?
> Would
> it be better to take the vacuum off of the "emission-controlled" (timed)
> port? Should the distributor be modified?
>
> Thanks for the help.
>
> Glen Wilson
> Rover Saloon Touring Club of America
> http://clubs.hemmings.com/rovercar/rstca.html
>
>
>
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