Tell me this noise isn't what I'm afraid it is.

[JSeery]

Originally Posted by Old Henry

That is certainly a possibility since, just a couple of weeks before the noise started, I put my old Stromberg 97 carb back on in place of the Holley 94 I'd been running. Then after the noise started I checked the spark plugs. They were a bit lighter than tan, more toward white, so I checked the jets in the carb and found that they were the .44's I'd put in to climb Pike's Peak and probably too lean. That's when I put larger ones in hoping it would stop what I thought was just premature detonation but it didn't. Maybe the damage was already done.

Why did you pull the 94?