A/F Ratio

Tgreen3724 · 07-27-2015, 12:17 PM

454/425 Super Stock BBC running a two step button and footbraking. AF ratio runs about 16:1 on two step then dives all the way to 11:1 immediately after release of the two step button. Then two seconds into the run AF curve flattens out and remains in the 12.5 to 12.7 ratio range. Is this normal for the AF ratio to dive from 16 to 11 after the two step is no longer activated? Ratios remain under 12 for two seconds of run then flatten in the upper 12 range for remainder of pass. Is this normal? Thoughts?

07-27-2015, 12:17 PM	#1
Tgreen3724 Junior Member Join Date: Oct 2007 Location: Shepherdsville, Ky Posts: 38 Likes: 0 Liked 1 Time in 1 Post	A/F Ratio 454/425 Super Stock BBC running a two step button and footbraking. AF ratio runs about 16:1 on two step then dives all the way to 11:1 immediately after release of the two step button. Then two seconds into the run AF curve flattens out and remains in the 12.5 to 12.7 ratio range. Is this normal for the AF ratio to dive from 16 to 11 after the two step is no longer activated? Ratios remain under 12 for two seconds of run then flatten in the upper 12 range for remainder of pass. Is this normal? Thoughts?