[ng8264723]

The best way to tune a carb is with a wideband. They are so cheap now it is crazy not to use them. I have one on my twin turbo Silverado and i'm getting 13.8 MPG! It idles with a AFR of 19!. With the twin turboes cruizing it is around 14. There is NO WAY I could tune to this level without one. As TOM KIRKHAM says your just guessing otherwise. This summer I'm going to add one to my Kirkham and get the dang carb tuned. I bought PLX kit for around $200