Having just done this yesterday on my 76, I can tell you exactly what it
should be. Vacuum connected, 800-900 rpm, and 2 degrees ATDC. I set my
at 1000 rpm, vacuum connected, and 0 degrees because that's what felt
right and ran well. In fact, if I back off to 800 rpm, it would
probably be at 2 degrees ATDC.
Marcus Schaper wrote:
> a couple weeks ago I replaced the distributor on my '76 1500 and added a
>Lumenition. I set the timing by ear for lack of a timing light at that point.
>I went back today to check the timing and was surprised to find it so much
>advanced that it was off the scale (no emissions equipment left on car, vacuum
>connected, idle 700 rpm, single vacuum advance dizzy).
> On my timing scale was a yellow dot at 2 ATDC, so I now set the timing to
>about 1 ATDC (vacuum connected, 700 RPM).
> Is this is about right? I only have manuals for the 1296 engine and never had
>a car with a single Stromberg before.
> Should I set the timing with vacuum connected or disconnected?
> The car ran fine with the far advanced ignition and still idles great with
>the new setting - it's raining today so I haven't taken it for a ride with the
>revised timing. It starts at the first key turn.