Doug was kind enough to provide affected RPM range, fuel rating, and engine builders stated compression right away in his request. It didn't take any further questioning to gather data.
He didn't state anything at all about compression or fuel. That's why I asked it. Go back to the beginning and read.
Here's his complete question;
My engine spark knocks around 2300-3500 in any gear. So after reading other post on the sub. I think it's the mech. advance. So I pulled my dist. cap and rotor and the springs are different sizes. Meaning one is heavier than the other. Is this o.k. or out of the norm ?
This question is begging for compression and fuel info to be included. That's why I politely asked....