""Thanks for all the in depth tuning results.""

My main reason for posting all of the details is because I ran into the same problem as you. I could not find allot of information or any articles that showed the progression of the tuning with actual results. I could find some reading here or there, but not any from beginning to end. Hopefully this will help others that run into the same questions that I have had trying to tweak in their carb.
So far, I can't think of a better tuning tool for a carb than these A/F kits!!

FOR REFERENCE:
I still can't get over what 1/12 of a turn on the metering screws will do to the A/F ratio.
If I turn all four of mine from 11:00 to 12:00 positions (for reference), this could be .5 difference on my guage. I would have never guessed that before this process started.
.028" IFR's to .031" IFR's showed a 1.4 to a full 2.0 change in my cruising A/F ratio at the same speeds.
.075" IAB's to .071" IAB's showed .4 to .6 change in my cruising A/F at the same speeds.

Last edited by YO7_A66; 05/02/11 01:19 PM.

1970 YO7 A66 [Canadian Export] F8 Challenger
340 (Currently in shop for stroker assy.)