Setting idle air by AFR isn't the correct procedure anyway. You should be setting your idle air with a vacuum gauge.
The first mistake most people make when they get an AFR gauge on their car is to try and chase ideal stoich all over the place from idle to WOT. My car idles very lean, and I get great fuel economy with lean cruise at about 16:1.
Cars with really aggressive cams like more fuel at idle.
The correct answer for your car is whatever air:fuel setting makes the most vacuum. Also, verify your timing. A lot of folks have chased their tail with idle tuning on their carb just to realize their timing was way off. I was once one of those guys.
__________________
77 Trans Am, 469 w/ported E-Heads via Kauffman, matched HSD intake, Butler Performance forged rotating assembly, Comp custom hyd roller, Q-jet, Art Carr 200 4R, 3.42s, 3 inch exhaust w/Doug's cutouts, D.U.I. Ignition. 7.40 in the 8th, 11.61@116.07 in the quarter...still tuning.
|