The carb is new but I’ve had it apart at least 10 times cleaning and checking both excel pumps are squirting and it has 33 high speed and 73 idle bleeds. It looks like I will try jetting it down below the 76/84, I just couldn’t make myself do it before, even though the car was slowing down, because of the plugs. It does make sense as when it went 119 in March it was with 76/84 jetting and mid 60 degree air. I really appreciate 6BBL comments about the unleaded gas and the plugs not following the jetting. I guess in the end this has been my best problem as it only required some education on my part, with a bonus of being free.

Thanks for all the help.