Timing question

Richard Sweet said
DentalDart,
So what are your final, measured degrees advance at: idle; max. mechanical; and max. with mechanical and vacuum advance?
Have you tried using a timing light with an adjustable dial for measuring timing? They are quick and easy to use. Since you have timing tape on the pully, you can cross check them.
You want to know total timing with vacuum before you do any hard acceleration on the road so you don't get any preignition and possibly damage the engine. Find out how much is too much in the unloaded situation first. The engine rpm will start decreasing with higher RPM if there is too much Total advance (with vacuum attached). Also make sure that the vacuum hose is attached to the timed port on the carburetor, not the full vacuum port. You can find the highest rpm with total (mechanical and vacuum advance).
Richard

About the timing tape... I never put it on lol. I have a timing light with an adjustable dial which we used. Set it to our initial where we wanted it then checked where our total without vacuum would be.

First initial :14
First total at 3k RPMs: 37
Turned initial back to 12 and shut her down. Theoretically we should be around 35 total, but we didnt check, o can check in a bit

Vacuum is plugged right now and we didnt time it with vacuum hooked up. We are adding a FBO distributor limiting plate and will get it even more tuned next Monday. Old man Tony says I've been working him to hard in the garage :poke::lol:
Just kidding, but we have been working a lot in the garage so we are taking a couple days. When I told my wife he wasnt coming over today she was like "wait what?!"