340 Static Compression Numbers and Test Procedure

Interested in what you come up with YR
I used to find that my motors ran better when I advanced the cam and turned out I was doing what I had been doing for years- measuring down from the max lobe- or your actually better method of up from the base circle and using the printed ICL
Turns out that I was not even as advanced as the timing tags showed when measuring the .050 timing
running retarded
BOttom line today is to verify what method the cam grinder wants you to know
Now about all the quotes from old tech- I's left over from symetriclal days
Read their methods of getting correct geometry- also way out of date and note even accurate for motors were you can adjust the fulcrum height on a stud
One has one line indicating that you need to obtain a narrow witness stripe
with no clue on how to do it even on a stud rocker much less on a shaft
So hint two
ignore all advice to advance a cam unless you know it was installed incorrectly in the first place
Cheers YR