New engine finally in!, 123 distributor 4RV Options

[Chad911sc]

So after 5 long months of work, I finally have the 2056 built and installed. (IMG:style_emoticons/default/piratenanner.gif)
I have a couple questions about the 123 4RV distributor. I haven’t hooked it up to power yet, but from my understanding, you hook up only the red wire and then power the ignition and a light should come on in the body of the distributor.
1) Since our motors go in a CW direction, the first movement of the distributor goes clockwise until the light turns off? Then CCW until the green light comes on? Correct?
2) The engine has dual carb Webber 40’s/Web cam 86a/Mild port and polished stock valve heads. My question is what setting should I use on the distributor? From what I see it looks like curve #3. Does this sound right?
3) Do I use the vacuum port on the distributor body to the base of one of my carbs, or do I plug it off, or do I leave it open?

Thanks in advance for any info!

[technicalninja]

Curve 3 looks fine for an initial setting to me.

You shouldn't be "overtimed" to start with.



Where is there a difference between #5 and #6?

Those have 7-8 degrees more mechanical. They look like what a "normal" water pumper would want.

It is odd that the other curves besides 3 have either 22 or 30 degrees mechanical.



Your engine compartment is closing on "World Class" (IMG:style_emoticons/default/first.gif)

I especially like the CF air filter hats with color matched "bling"

I'd bet you're looking for the plastic washers in a lighter hue of blue...

Might be able to paint to match!

Nicely done Sir!

[emerygt350]

Curve 3 looks fine for an initial setting to me.

You shouldn't be "overtimed" to start with.



Where is there a difference between #5 and #6?

Those have 7-8 degrees more mechanical. They look like what a "normal" water pumper would want.

It is odd that the other curves besides 3 have either 22 or 30 degrees mechanical.



Your engine compartment is closing on "World Class" (IMG:style_emoticons/default/first.gif)

I especially like the CF air filter hats with color matched "bling"

I'd bet you're looking for the plastic washers in a lighter hue of blue...

Might be able to paint to match!

Nicely done Sir!

That looks really good.

I don't have carbs but I use 0 and 1. If my base timing is at 8-9 that gets me around 30-31 all in. I see there is quite a difference in the 0vs1 vacuum advance, I might play with that a little bit when I get back to the states. Interested in how that affects cruise mpg and heat.

If you are running 5 and a base timing of 7 that puts you pretty far advanced but I have had my engine up near 40 before and it ran fine. Just didn't want to chance detonation.