440 Engine tuning suggestions

Newbomb Turk said
Check again.He said 30 at idle. It doesn’t need it. The only way to do it is hook up the vacuum advance to manifold vacuum.

It’s poor engine building that requires that kind of idle timing.

Fortunately for the OP his engine was built better than that.

I understand and agree with you that it doesn’t need that much timing . But I would run manifold vacuum to keep my primary throttle plate transfer slot correct .
Speaking of which they may be open a bit too far thus the run on .