Which vacuum port on Edelbrock carb?

[Rog's troubleshooter]

I've disconnected & plugged the vacuum advance pipe and retimed the engine to 35deg @3000rpm, although with the very light springs in the distributor centrifugal advance is pretty well fully in by 1500-2000rpm. Tickover advance has settled at about 20deg BTDC. Engine seems to run the same at idle , will now try some power runs when I'm back in a week or so, but still feels "flat" even when revving while stationary.
If you've seen my other thread, I suspect I'll be taking at least the valley cover off for a deeper look at things.

Thanks for all the input, update in a week or so.

Cheers,

John

[AN89AG]

Here is a short article with some good background info on vacuum and advance....

http://www.hotrod.com/how-to/additional ... on-timing/" onclick="window.open(this.href);return false;

[Rog's troubleshooter]

Great article with good explanations - many thanks!

John