I don’t disagree. The real issue is that the quality of most chains produced today is not great and they stretch, thus causing other issues like timing jumping around due to the “whip” of the chain. I went down this rabbit hole 2 years ago. We tried 5 different timing lights, 2 different distributors that were ran on the test machine, changed out the MSD and coil, all came back with the same issue of the timing jumping around. Then did surgery, pulled the cover and found that the chain had a ton of slop on the driven side. Oh yeah, it’s was a Cloyes true roller chain with like 20 hours on it. Changed it to the pro gear I posted above. The timing issue was then corrected..
