1974 D jet with new 123 Distributor a couple of questions Options

[Billy Bumpsteer]

Completely standard 2.0 1974 car with D jet, I have just replaced the dizzy with 123 version 4RVIE, old dizzy was a 0231 174 005

Question 1, what is the best setting for the flip switch?

Question 2, old dizzy had 2 vacuum hoses on it (one from top of throttle butterfly, one from below), 123 dizzy has only 1 port, what do I do?

TIA

[Billy Bumpsteer]

So is it 9 or 0

[914_teener]

So is it 9 or 0

I believe the asterisk indicates using retard or manifold vaccum on the TB thus a different curve.

I'd run ported advance or 0 for a two liter. I ran that for a stock 2 liter car without issues. I ran it with advance ported vaccum.

Per the instructions.....you need to set the static timing first and you will add the static timing degree (BTDC) to the degree value on the chart.

Download the manual but I believe that's what the asterisk means.


Edit:

If the car wont' run very well with the timing set at spec static timing....you have a vaccum leak or the idle and air mixture needs to be adjusted to get it to idle at the chart RPM or spec RPM.

You need a degreeable timing light and a tach or you'll have to stare through the back window to know what the RPM are.