Throttle stop carb adjustment

[Tom Goldman]

Originally Posted by EVIL CLOWN

The carbs that I run are done by CFm and book very good carbs to big for stop racing irk very well off stop I know these guys don’t do stop carbs just looking to adjust what I have I run vp c 14 fuel trying to see if anyone knows when they go lean on the stop is what I’m thinking but what do I know need to put a 1050 on it in the future timing is 37 degrees and we don’t pull any timing out on the run motor runs 8.40s in 3080 lb car makes 1004 on dyno

Without fuel data ,it's difficult to focus the cause ,or the time of detonation, If that is what is causing the bearing issue.
Are the spark plugs also showing signs of detonation? they should if the detonation is bad enough to cause bearing damage.
several carbs I've run have gone as lean as 15.3 AFR while on the stop ,running the same timing and fuel with 16 to 1 compression and conventional heads , not that any two engines want the same timing ,especially with your car weighing 700#'s more than mine.