I installed an Autometer Air Fuel Ratio meter in my car after using an LM1 for a couple of years. Its amazing how the A/F ratio can change with the weather temperture etc. At idle I'm running between 14.6 and 15 on most days. Normal driving is around 14.2 to 14.7. WOT is between 13.2 and 14.5. I run two Carter competition carbs, getting them adjusted was time consuming but worth it. I like Holleys too, but mostly on built engines with radical cams. Holleys sem to work best there.