The carb is a Holley 750 (80508S). I don't remember what the stock jets were but I did go up a size or two.

Thanks for all the help. I may install a heavier spring in the dizzy this evening. But I likely won't get to test it out. I don't trust Atlanta drivers as it is and then add rain on top of that and it is a bad combo.

Here's a picture of a spark plug from when I pulled them out to replace them with the Autolites.


Of course, this is after driving it normally for a few miles while trying to test the effects of the things I've been doing and not a check after running it hard.

And the converter is a TurboAction - 17805S (10").