Originally Posted by phil8825
Ok, so went out and bought a timing light... At idle ( ported vac disconnected and plugged) its holding at 13. 1500 RPM @ 20, around 3000 its at 15-16.. Is it supposed to increase and then decrease like that.. I have no idea :-)
The eddy carb is a 1400 carb, so i gotta look at what it comes with in terms of jets. I didn't change anything.
No it's not. Your ignition module may be causing some of this. I'm not sure.
Here's how to figure it. Let's say 13* initial timing at idle. As RPM increases, the advance should increase proportionately until 3000 to 3500 RPM. Total advance should be about 32 to 36*.
That's if you had no vacuum advance. If the vacuum advance adds 10*, it would be:
13 initial +9 in the distributor weights+10 in vacuum advance for a total of 32*